I’ve never been someone who blocks people and I’ve never been into filtering posts on any site/platform. But there’s no shame in it here. It’s VERY intended for users to have that ability and not just use it when they’re being harassed. For a bit I was even considering using adblock filters to get block some keywords but that hasn’t been as much of a problem lately for me. But just a few communities and accounts are responsible for most of the doom and gloom.
I’ve run http servers from my phone to copy files from it. For fun I made CSS for the file list and added an “upload file” button. I never got the php max upload size setting to take effect though. And I never bothered with that cert crap. But you CAN run web servers. I found the php web server worked best.