Good grief - what an awful idea. There are many people in computing who aren't great communicators full stop, let alone in the written language. They can be just as clever and interesting as the next person, however (especially if the next person happens to be one of many of the frequent posters on this forum who post much and say little).
If you don't like the way something's written, ignore it. It's really not difficult.
The original poster (Epicenter) made this statement: "if you are not knowledgeable about the topic, you probably shouldn't be making a thread about it." I'm not aware of the full context of the posting that was used as an example, but the content of it makes it clear that the person is asking for the opinions of others, and that it's an opportunity to educate them on the subjects that you proceed to enumerate.
nickspoon: you wrote "the best idea would be, if you're not a native English speaker, put your location in so we know you're not a native speaker and don't get annoyed."
Cool - would there be special icons for those who are dyslexic, too?
I don't think there's enough of a signal-to-noise ratio issue here to warrant concern at the moment. If the number of posters increases dramatically, then I could definitely see merit in having a slashdot-like mod points system, however. Bear in mind that it's exceedingly unlikely that anyone has time to do the work to implement things like that, though - people must already be putting in a lot of their free time to run this forum (for no charge).
Just my tuppence. Say 'no' to gp32x entrance exams