In a recent question, the poster used slang. When it was pointed out, his response was 'sorry, I'm from a the hood, tryna learn some math. You feel me'
My instinct was to take the OP for their word, no matter how high the probability that the OP was trolling. I looked around in Meta for a discussion of this, but found only a post encouraging proper English "to the best of the poster's ability."
My thoughts go this way--if the OP is not trolling (and that should be assumed until proven otherwise), then they would be discouraged when told to use 'Proper English' which would be a shame to me. If they really are struggling to learn math while facing difficult circumstances, encouragement or helpful direction on how to improve their question would seem more appropriate.
I'd be interested to hear other people's reactions.