I use alternative words for their/there and other words that I don’t know how to use.

At least 60%. Usually because I’m on my mobile and haven’t gotten the formatting right. Sometimes because I feel I wasn’t being clear, or simply because I used a word twice in the same sentence.

Fairly often, mostly for typos because I’m fast. haha
I always hit the ; instead of the ’ key…such as “don;t instead of “don’t.”
Fast brain, fast fingers = typos.
Otherwise I edit my replies on occasion if I realize I misconstrued the topic at hand because of speed reading.

It’s a blessing and a curse to have a brain that fires like an Audi. lol

I edit quit a bit, too. Depending on my mood, I sometimes have a lot of misspellings and I won’t catch them all. And also like @longgone when I read it like I’m seeing it for the first time it becomes clear that I’ve misused noun and pronoun (for clarity) or used the same word twice. Sometimes I remember that I missed a key point, and don’t want to make another post. Occasionally I get on a kick where I go in and remove all the extraneous “thats”. Once in a while someone will point out a flaw and I’ll get there in time to fix it.

Fairly regularly. I notice a typo or wrong word choice after hitting send quite often.

Yes because I usually end up adding to my answer.

Quite often. Mostly for typos, sometimes to add or edit a bit to make my point clearer or avoid misunderstanding or delete my stupid statements.

I have just edited my answer :p

Quite a bit. I have 67 Perfecto-fish awards to prove it.

I’m often in a hurry when I answer and this causes me to make a lot of mistakes. I hate looking at those mistakes when I catch them, so I edit.

And I thought I had a lot with 21!

I just do it for the award.~

I edit to make Fluther look good. : )

Maybe 1 in 5, mostly when I see typos. Often I will come back and look at an answer too late, and am flabbergasted that such a doofus error made it on the screen.

Typos. Whenever I catch them within the five-minute mark.

“How often do you edit your answer”
Quite often

“and why do you edit?”
I’m drunk and spelled shit wrong.

Usually to correct typos but sometimes to add something to my response when my response ends up having two meanings instead of one

I end up editing my answer more often than not, especially when using my iPhone. It’s almost always for typos, but sometimes I just want to add something else.

I often edit a question or comment 3 or 4 times, either to correct typos or express myself more clearly.

I edited this one once to add this line.

I edit a lot because I tend to type quickly and press “submit” before proofreading. Then I find a missing word, a misspelled word, or something I’d like to add to my answer.

Only when I need to. Typos are usually the only reason why I edit my response. Proof reading is also necessary to avoid any sort of misleading answer.
But sometimes I just read it like in my head and it’s still wrong in written and then it makes no sense at all. Haha. I think their is a word for this situation.