To some extent I think you can do most of that on Lemmy.

You can upload images for your posts (not sure for short videos) and cross-post them to other communities.

Edit: I don’t know kbin.social but I suspect it would be more adequate to what you want to do.

This is an article from 2020 and I’m fairly sure it didn’t happen.

I doubt they check.

Because any mistake would be fairly expensive.

Are you not allowed to get everything deleted through GDPR or something similar?

Bleak urban funeral home ?