I saw this message in chat
hi - any borderlands2 players here? I'm in TVHM now and finished two DLCs there so i'm lvl 47 with almost no story missions done. unfortunately those don't scale so i wonder if it'll be possible to join a multiplayer game with someone who's almost done with TVHM story and kill The Warrior to unlock scaling and then continue doing the story missions
This answer seems to verify that beating playthrough 2 begins that scaling of enemies and such.
beating playthrough 2 scales enemies and rewards to your level
Could scaling be enabled by joining a multiplayer game on Playthrough 2 and just beating the final boss?