This question has been asked many times. Usually, it is asked after a troll on here riles up a lot of people, like two different posters today.
One was several months ago on a holiday weekend. She started out with a sob story that had people feeling sorry for her and writing well thought-out posts to her. Then she wrote another one that was full of misspellings, ranting and craziness - reading it and looking back at her first one was like giving yourself mental whiplash - how could this be the same person writing? The kicker was the things she said about her stepkids.
I wasn't the only one to realize that she was a troll. In subsequent days, she told everyone that she was a law student, that she had rheumatoid arthritis and made a mess typing because her typist wasn't with her, and that her typist didn't like writing on MP for her and would make a mess of it for spite.
It also seemed that she couldn't keep up with how many kids she had.
I could tell you a whole lot more inconsistancies, but that's belaboring the point. The thing with these trolls is that when they ask trolling questions - questions designed to get people arguing or upset - they are jerking people around. There are a lot of people here who try hard to give good advice. There are a lot of people here who have terrible problems. It is an insult to both of these groups of people for someone like I'm talking about to be mispresenting themselves, to be making this stuff up, and jerking people around.
THOSE are the kind of people who I will take to task for spelling. I have and do take up for the others. I have seen some people make fun of a "real person" for misspelling, and usually it's someone whose English is their second language. Those kinds of posts are usually deleted by MP for flaming.
I think that you just have to "be around" enough here to tell the difference in a person who types like they text, spells badly naturally, and a troll who is doing it on purpose.
Dawn