Probably neither.
But I don't know the fella. Maybe he is.......
He's playfully trying tell you that your posts are hard to read because your grammar stinks.
However, I'm not a racist and I concur - your grammar is bad.
If you feel the need to play the race card on a group of people who can't see you, don't know you and have no idea who you even are, then I would say your horrible grammar is the least of your worries.