Fixing site problems is one thing, but I don't really know how much influence you have on the people who made the games. Nevertheless...
Bookworm.
When the gong sounds at the end after the timer runs out, if there is anything else happening in the game (eg, tiles falling, tiles being consumed/submitted etc) then it will stop there and never submit your score. The tiles and the worm don't get charred up like they do normally.
You can still click on letters, but you can't really play because they aren't the letters that you're reading. I think the timer also resets, like it's started a new game but hasn't updated the visuals.
Also, "suss", "doofus", "queef" and "muon" aren't in the word list! C'mon guys! These are all words that I use on a daily basis... haha don't ask
Edit: "joey" (baby kangaroo, not a proper noun), and "stylish"