The anon only said "I wonder why you can't spell..." Without looking at his facial expression, it's way too exaggerating to say that he's being rude or acting in a derogatory manner.
"I wonder" can be an expression of curiosity, an inquiry, or disbelief. It's really no big deal.
And you re problem is?!
Just because I said ''it dropped in UK'', does not imply that my nationality is also British (I am a foreigner living in UK if you want to know). Don't judge a persons gender or nationality based only by the comments. Thank you.