Okay, i looked over bbpress.
The site doesn't do a good job of selling it's attributes, that's for sure.
One thing that does seem to stand out is that maybe it has a wysiwyg editor.. a plus.
And now, we read the fine print about phpbb importation..
https://codex.bbpress.org/getting-start ... ums/phpbb/
No File attachments are imported.
User 'Personal Messages (PM's) are not supported or imported
User 'Avatars are also not supported 'out of the box' by either WordPress or bbPress..
phpBB Signatures, location, occupation, and interests custom profile fields are also not supported by wordpress or bbpress 'out of the box'
This is the problem we've had with every other forum software. One critical piece is always missing.
Vanilla forums and discourse come closest to properly importing our data. Basically a prerequisite to using them is to reverse engineer both database formats and fix the convertor. That's a mega nasty programming job i'd like to avoid doing.
Also wordpress is a monoculture and so it has the most exploitation attempts by far. In our server logs, i see shit tons of attempts to attack wordpress every hour, and we don't even have wordpress installed. Actually, wordpress has a bug that's been outstanding for 7 months, where anyone with an 'author' or higher authentication can go and delete any file that the apache/nginx/etc has access to. Brilliant, huh?