Interesting. I took a look at the comments and yours didn't appear. I hit a dead end, where Youtube said that it failed to load more comments, but I presume there were none I was missing.
As a little experiment, you could place a comment on one of his other videos and see if it is visible incognito, or to others. If he has used that hide user option, then your comment won't appear to others, even though it's just been posted (I presume that's how it works). If it does appear visible to others, then there may be another explanation (presuming he doesn't unhide you since).
I'm also fairly certain that reporting comments for spam/ abuse also hides them from the public but keeps them visible to the poster. Either way, it's a bit weird.
It might be that it's not him, but viewers flagging it then? He does have some pretty rabid followers. Even with a thin skin for criticism, I would find it weird for him to ban for those comments, since there isn't even any criticism in them.