Hey Daniel.
You probably don't know me, but I've had the honor of seeing you in person in May during the GSL Super Tournament when I was in Korea for the summer break. I respect you and tasteless for your considerate effort to bringing the best commentaries of SC2- be it GSL, MLG or any other event and I'm always thankful for being able to hear your insights for the game.
Ergo, I am going to criticize upon your actions a bit, because I actually care so please don't take it too hardly but try to at least give some considerations because I think what you are doing is not very professional, and I don't want others to look down upon you harshly, despite the fact that you may already consider yourself as an "asshole".
First of all, and I'm sure I'm stating the very obvious here, but you need to recognize that this is a Korean site. As you wouldn't expect people writing in Korean or any other foreign languages in English sites such as Teamliquid.net, you have to give some considerations to the users and should definitely not expect them to understand anything you are saying, with the exception of a few who actually studied English quite a bit.
So, in my opinion what should've actually been done is to find a capable translator and have the person translate your words into Korean. Due to practical considerations however, I know this isn't a very easy thing to do, but you need to at least try to find someone to do it for you. That is one of the ways to respect the viewers.
If that wasn't possible, then I think it is fair to ask one of the users to translate it for you, but in more of a mannered way. You can't just say "Someone please translate this. NA players play like this, this is higher level play and common sense." and expect someone to actually take their time translating a long article for you. In general, and this is especially true in Korean boards, but if you are to make criticisms and even if what you are saying is 100% correct, there are thousands of people that will just criticize back and not listen to you. In this case, it's even more important to recognize that because people who are capable of both languages will just look at what you said and go "O U THINK U SMART HUH? JUST CUZ U FROM US AND U PPL MADE SOTIS MEANS U DA BEST AT THIS GAME?" and just scoff it off. In my case, I simply refused to translate because what you have wrote can be considered offensive and I did not want this board to get into shits of mayhem and have people engage in a 4-chan styled argument. This may not be the most proper analogy, but there's a difference between telling a bronze player "I think if you practiced a bit more, you would soon become better" to "HEY U SUCK AT SC2 U BAD U NEEDZ PRACTICE". Koreans here are feeling the latter.
Second, you need to realize your position as a professional caster and re-think about your actions one more time. The probability of an action of this scale actually affecting your fame and your career in any near future is probably near zero, and I understand that it's ultimately your choice to take whatever actions as you'd like, but something as insignificant as this can damage your reputation, and you probably realize how much harder it is to build and maintain your reputation than to destroy it. You may think I'm taking things a bit overboard here, but before you post something, you should probably read it over again and try to eliminate any statements or claims made by you that can result in a heated argument, dragging your reputation down. There are probably a minority amount of users here who goes to both PlayXP and Teamliquid and you may find your entire posting here copied and pasted over at Teamliquid - You simply never know.
Third, I'm going to "hopefully" explain why Koreans suck at this game compared to the NA standards and why you shouldn't be expecting a high level play that you've experienced from the NA server. I need to make it clear that I'm not a hardcore SOTIS player, let alone "a" SOTIS player as I've only played the map about 6-7 times. However, I've played other AoS maps extensively, especially DOTA and I understand the mechanics and importance of laning and ganking, which you are discussing about so I feel somewhat qualified to explain the above phenomenon and that I understand your pain and frustrations when you have teammates that can't play for shit.
The concept of "AoS" is somewhat new to the Koreans. To be exact, the "Western-style AoS" has been none existent for a while and it's now being slowly assimilated into the gaming community in Korea. The only AoS most Koreans know how to play is a Warcraft 3 custom game known as "CHAOS" and if you've played it, you may know this already but the concepts and dynamics of the game in CHAOS is way different than western-style AoSes such as DOTA or SOTIS. When DOTA was first introduced in the western side, there weren't any clear set of strategies, be it laning, ganking or even the basic fundamentals of farming and denying. The Koreans are going through a very similar phase right now. In fact, if you compare the skill level of the players from last year to now, you would probably notice a huge difference.
Because of this fact, it's still premature to assume that players have a full grasp on how the team composition is critical for winning the games. Sure, some players are just simple assholes and would only want to play the heroes they like or they are used to, but those players aren't even worth your time because they will never change their ways and these kind of assholes exist in just about any other servers. For the other majority, which I hope are who you are trying to discern and trying to teach them about the metagame and the importance of team captain, but this is probably still not the proper time to force the knowledge into them yet as the SOTIS metagame in Korea side is still being developed and slowly being assimilated.
Even if assuming you are playing with people who understand the game very well and if they refuse to play certain core heroes for your team composition (The "assholes"), you need to let it go. People say AoS is a game of C&C - Collaboration and Communication. If you break that, then you are throwing away a game that may be even winnable just from breaking your team's harmony - another key aspect which a team leader should have in my opinion.
I know I've stated a lot of the obvious, which most of it you probably were aware of, but I'm telling you this because I don't want people to judge and criticize you harshly and then your reputation dragged down because of the momentarily anger and frustration you could not control. I really respect you as a professional commentator, I'm sure along with many others out there. That's why I'm actually taking the time to write this. Please consider what I had to say and reconsider of your actions.