I can't help but think from reading his posts that Aria's gaming group must likely consist of his enemies.
Isn't the point of D&D that it's something you can play with your friends? If it ever came down to me having to go down to the local gaming store and having to pick up a few hobos off the street (splatbooks in hand!) I'd rather just give up the hobby.
Maybe I'm spoiled by being able to play with friends, but I wouldn't even consider DMing for a player who was going to cry if I didn't let his Incantatrix improved metamagic stack with Arcane Thesis to bring Metamagic feats down to +0. Frankly, I'd rather not play with people using Incantatrix period, unless my players all wanted to do a super meta-gamed high-power campaign. While we've ran one or two of those before, it's only fun to do if everyone agrees to it. Heck, in my last campaign I had a player show up on a game night early and ask if he could re-make his character using some less powerful PrC's around level 11, because he felt like he was overshadowing the rest of the party too much (and he was, a bit).
But I guess you might call us beer and pretzel gamers, and these rules are very nice for us. Of course we houseruled out Identify ages ago, as none of us could see any potential for fun that it brought to the table, and enforced artificial timelines on campaigns that often include an important time element. Your mileage may vary, of course.