Ah. I'm binge-watching Community again since about 2 weeks ago. I'm currently at the episode Advanced Advanced Dungeons & Dragons and they referred to an earlier D&D episode that I've definitely watched a long time ago but can't recall having watched in this binge...

Turns out that's the one that got removed 2 years ago for Chang to do something looking like a blackface. Mmm, the removal was probably overkill since that issue did get addressed in the episode too and could've been a nice educative moment. In the meantime we're missing out on a fun episode. :P