E621 dataset?
While I agree that it makes sense to include something like Ye-Pop for general knowledge, I don't see any benefit in using the DeviantArt dataset. If you're going to add additional data that will distort the model's aesthetics (and the DeviantArt data certainly will), why not add something that might introduce new concepts into the model? (For example, the E621 dataset, which has been proven to improve the NSFW aspect of NoobXL models, compared to plain Illustrious models). Given it's properly tagged to not bleed into the model, of course.
I think 2B model is kinda limited in term of dataset people can cram in it. Once it have a decent base model, people can bake their own loras
Deviantart has no place in an anime model, photos could potentially help with stuff like backgrounds. e621 at least has something good going for it.