Doesn't the own forum correct misspellings? In my case I've just tried writing "mispelling" and it has changed it automatically. Even when I've tried to maintain the word in the post, it keeps highlighting it. It should be enough to maintain certain level of quality (unfortunately it doesn't revise the "use of English"). Maybe it's because I use a Mac, or maybe I enabled some options in the configuration screen, I can't remember.

On the other hand I agree with you that, if you're non native, as it's my case, and write in the general sections of the forum, you have to try to do an effort to be understood and keep learning the language in order to improve more and more, or stick to the alternative of writing in your local section, which isn't a bad deal neither.

Anyway, I also think that there are some native speakers in the forum that write without any care, using vulgarisms and other structures hard to understand for non natives, and that is not incorrect, but they should take into account who are they talking to when they answer this way. We are a different cultures and languages melting pot in here and without noticing it we're building the language of the Internet, which 10-15 years ago didn't exist, and which will evolve into something unpredictable in the future. For this reason, apart from respect and trying to be understood, which are fundamental reasons too, we should take care of the way we express ourselves in the public Internet.