Wow - there's a lot of harsh critique of the OP here. Allusions to him being "a really annoying DM" or "ban crazy." I gotta say, having come from the 3rd edition environment, I am also not letting things in whole-cloth. You don't need splat books to be creative, and your feat selection shouldn't determine how much fun you're having with your character, should it?
Once upon a time during 3rd edition, after playing with numerous ridiculous source books and in the thick of the edition, I decided I wanted to understand it a bit better by just playing a core game with my friends. Foremost they were livid at the very suggestion, and were adamant that we not do it. It ended with them saying they'd rather not play than play in just core.
So with that perspective in mind, banning now makes perfect sense to me. If later on something seems fine? Let it back in. While I'd disagree with some of the OP's choices on banned feats, the notion that he can choose what is and isn't allowed in his game? That I'll get behind.
I for one am all for picking and choosing what races, classes, paragon paths, epic destinies, feats, rituals and even equipment I bring into my game world. It's my setting, shaped by the actions of the players, and so I feel entirely comfortable saying what props are and are not allowed there-in. The overall "fun" isn't going to be lessened by making do with less, the players will simply have to be more creative with what they have. At least, that's my two cents.