Some more thoughts,i have mention before Team account DO
i think this is a really good option.
No rush but something think about,i may not be wanted in team anyway
If my forum doesn't work out is really not that important for me at all,
i will keep running it and see.
Sure i would like that we use a modern forum software like NodeBB(1)(Discourse 2 choice),
feel like they are much more point at the future(and have developers that care).
Think staring at scratch is a good option and partial move over stuff if that's really needed.
like both option of database that nodeBB use(Redis(1) | MongoDB(2).
phpBB,MyBB is base on PHP and often use MySQL,feels a little older an somewhat outdated.
The Python forum software are little slow to move forward.
Sure all work but...
I really like Flask for web-development,
there was a try to make a forum in Flask when old forum went down.
But this failed big time,
making good modern forum software is really a lot work.
PHP is never necessary as Python user.
If someone would like to look at backend NodeBB admin panel(which is really well thought out) give me a PM.
i also want to avoid big huge things, like django, regardless of the language.
Flask is prefect for this