Tara Reade is 2 words
Yeah I think making it federated would really make this worth using. Good luck with this project!
Depends on what you want to build - e.g. if you just want some text or a blog, Github pages is good, if you want to make an interactive website with Python then Heroku is good, and DigitalOcean is good of you want to make something more complicated
Isn’t Scratch already open source? I know before 2.0 it was made in Java and so there were cool forks of it like BYOB and Panther. A nice feature of online scratch, however, is the ability to “remix” (fork) projects, which teaches kids the benefits of open source.
For the Imgur one, you could use the LBRY blockchain, since it supports any file.