When you are quoting someone’s post, do you correct any grammatical errors or typos? Or do you think it might embarrass them? Or is it too much trouble? (Unless of course you are quoting them in order to point out their error!)
I tend to fix them, myself, thinking that they knew better, and it was just a mistake.
(Can you think of a more mundane pointless post than this?)
I think it’s kind of rude to correct them. Unless they asked (unless it was some kind of grammar thread). If someone did that to me, I’d be sure to dissect his own post to such a degree - picking out each and every grammatical, punctuation, and spelling error - that he’d make sure never to do such a thing again. You’ve got a couple of questionable choices in there yourself! 
That’s what happens when you try to correct other people’s writing - it comes back to bite you in the ass. 
(I’m sure I’ve made several errors here too.)
I don’t see anything wrong with quietly correcting a typo or two, especially if (1) you don’t call attention to it and (2) the error made reading difficult. To me it seems that perpetuating the error under the person’s name would be more embarrassing.
I’d think that that would come dangerously close to breaking the “don’t attribute false quotations rule”.
If you are quoting someone, the quote should be exact. You can type [sic] next to a misspelled word or grammatical error if you must, but here at the SDMB, it would be pretty rude)
If the error causes confusion about the meaning (which is often exacerbated by quoting something more or less out of context) then it should under certain circumstances be fixed with brackets, indicated via [sic], or clarified in some other way that preserves both the author’s words and his/her intent.
It has never occurred to me to correct a quote – I just bring it down wholesale. If I’m snipping it, I will make sure I’m not distorting what I understand to be the person’s intention, and will do ellipses or brackets if I’m tweaking it, as Zsofia suggests.
If I’m quoting something in the quote tags, I don’t alter it. If I’m retyping it within quotation marks (ie: The OP asks, “do you correct any gramatical errors or typos,” and I say, sometimes!) and there was a small error I will just correct it as I type.
I quote verbatim. It’s the only way.
Don’t go altering what people have written. This is the rule for reproduction of printed matter in academia, the press, etc., and it should be upheld on the SDMB.
I believe the use of [sic] is justified both in Zsofia’s circumstances, and if the person is egregiously at fault: e.g. someone berating Isareal [sic], or athiestm [sic], or Moslams [sic].
Or if you just want to be a snarky bugger.
For anyone who does correct spelling mistakes, how do you think this sits with, for example, dyslexics?
Would you also, for example, cut short a stutterer (sic) in a conversation by guessing the word they’re stuck on, or ask someone with a lisp to pronounce correctly ?
Perhaps I’m being unreasonable ?
I would never interrupt a stutterer! And I never reword a quote. Just a correction of a typo occasionally. I never intended to cause embarrassment, either!
Everyone is welcome to correct my errors, btw.