I run my own file host: kimiga.aishitei.ru. Files get uploaded from clipboard using ShareX. This allows me to have control over my own files, how long they last or if they should last forever, and I'm not dependent on a benevolent developer preventing my links from rotting 8 years from now when they close down their host due to it costing them too much or simply because they got bored of being a sysadmin/dealing with issues (or users) of their site.
I used to donate to pomf.se and used that as the image host because I was a supporter of the sysadmin - but it eventually grew too large and had to shut down. Then a bunch of pomf.se clones popped up and I used one of those - can't remember which one but then that one shut down too after only a year. That's when I decided to set up my own host.
I don't allow other users on the site because I don't feel like having to deal with what users upload, DMCA requests, morally gray areas, etc.
.ru domains are sometimes blocked so my backup is catbox.moe