If it's a good enough joke game then it's a good enough short game.
Exactly. The joke game category in the database is usually reserved for games that meet the criteria I mentioned earlier; a one-screen gag that took then minutes to throw together. If you put a lot of time and effort into a joke game, then you're doing it wrong.
I have made a joke game* that got three cups... Embarrassed
You're doing it wrong.
I can change your game's category to "Short" or "Non-Adventure" if you want. Ben Jordan: Paranormal Warrior Within probably exceeds the quality of most joke games too. If we take those two, along with Monkey's IWWHIIWWHITOMIROTPG: The Game!, out of the joke category, we'd be left with a clean sweep of 1 cuppers.
Personally, I predict a Journey Down-esque sweep for Gemini Rue.
Ooh, don't get me started on commercial games in the awards. I haven't played Gemini Rue, since I didn't buy it, so I'm not in a position to vote for it anyway.
EDIT: Earlier I said there where only 76 joke games in the database, but there are actually 95 (counting broken links). Still only three that rate more than one cup, though.