Spelling and grammar are one thing, format and effort are another. I take at least 10 minutes to make a post to any public forum - I read, reread, rereread each post. It takes effort, I know, and I appreciate it when others hold themselves to the same or a higher standard.
Whenever someone points out a spelling or a grammar mistake in my post, I wonder if they understood its contents and the message I was trying to convey, and whether they deserve a response.
If I spot a mistake in someone else's post, but it looks like they put effort and thought into it, I'll ignore the error (although, it has to be pretty darn major if I'm spotting it
).
If it appears that they literally hammered it out in under a minute, I'll ignore it and not respond.
an wen ppl tlk liek dis it menas dat dey dont kar @ all an mebe r byond hlp so u shud nt repond