I don't support any of the bad things that Ayee has done/been accused of, but his channel has a lot of LBP content that might not be available elsewhere. Most of the LBP1-3 community levels will get recorded eventually but there's other content that needs to be archived such as:
The LBPKarting, Vita, and PSP community levels that aren't on other channels since they're underrated and possibly harder to record
LBP Avatars and themes since they might not be available elsewhere
The LBP Playstation Store videos since I can't find them anywhere else
Some of the videos in the LittleBigPlanet Creations playlist since they might be nostalgic.
I'm in the middle of final exams so I can't archive everything myself but I'll try to archive some of the trailers during the weekend.