Guilty? No way: my wishlist does not vex others, it only exists as a tool that should be useful to me. Could I cut more? For sure, although recently it has resisted attempts to slim down considerably.
Time plays a huge role in all of this, BTW, as hype dies out and people become more realistic about games, I get a better idea of how good they truly are. My enthusiasm for a game may die out on its own, as well.
It’s perfectly fine to get the games you really want to play now, even if they are not critically acclaimed. If anything, perhaps you could revise your rules for wishlist addition, make them more strict.
You mentioned games that are praised and lauded by people with similar tastes, but maybe their tastes they’re not so similar as you thought in the first place?
I cannot say there is, for instance, one RPS writer whose recommendations I find 100% true to my own taste. That sounds about right, though.
And if I had temporary access to review copies, you can bet my own wishlist would be a lot shorter; the Steam refund window of two hours is too short for too many games, there’s a lot where I could use 4 to 12 to come to an informed decision. I’d have a much more accurate idea whether a game is worth getting or not, instead of having to rely on other people’s opinions.
FWIW, since ITAD syncs with Steam, I seldom manage my waitlist independently from my Steam wishlist.