Actulally, he was contacted on Monday by CNN, then Tuesday he apologized. From CNN's article:
"On Monday, KFile attempted to contact the man by email and phone but he did not respond. On Tuesday, "HanA**holeSolo" posted his apology on the subreddit /The_Donald and deleted all of his other posts."
And that is part of the problem, why should he have to apologize for a GIF or MEME? Why would CNN, a multi-million dollar company threat to Dox him?