I loved the buckets thing in Love and Monsters. In general, I like that episode, although the potty humor/blowjob joke schtick brings it down a few notches. It's one of my favorite teases in NuWho. Well, I guess in any Who since Classic Who didn't have teases.
Sometimes they lay the humor on a bit thick for my liking, like with the fish custard bit, but it doesn't ruin my enjoyment of the show as a whole.
There are a lot of things that I haven't loved in NuWho, but humor in the show isn't one of them. If Moffat's making fun of the show, he's making fun of himself--he does have a much deeper connection to the show than any of us.
I'd rather have parking brake jokes and even the odd oral paving slab than the dismal stories we got in the late 1980s. I watched Battlefield a little while ago and thought it looked liked everyone just stopped caring--it was honestly hard to get through. You're never going to convince me that JNT and crew were earnest crusaders for their art, and that RTD and Moffat are nothing more than continuity-destroying misanthropes, bent on ruining Doctor Who.