Funny, as an English teacher, they don't bother me unless they are very basic, such as their/there. English spelling is insane. Since I'm not always sure who is a native speaker and who isn't, I don't often sweat it. When the content of the post reflects a lack of intelligence, then the usage and spelling can help suss out who is and isn't worth responding to.

Cheers

Just a peeve but aperture is spelt correctly in the majority of cases in Will's document.

May I inform you of a beastie called "the typographical error", often found lurking in "documents",
like brontosauruses, they only eat grass - no need to panic.

Oh shit I've just been trampled by some brontosaurii.

The moral to this story is, of course: "don't grow lawns".