XenForo has some great forum importers that basically allow it to assimilate the databases of other forums such as phpBB forums, and you can add more than one board. As you are aware, we ported our phpBB3 forum into XenForo in 2013 and we also ported our restored phpBB2 forum that was rebuilt using backups from prior to that one time in 2007 when the site got hacked and was broken for a couple weeks. However there were some problems with the backups at that time and there's a gap of forum posts that are missing that is bigger than those 2 weeks, which runs from approximately April 18, 2007, to October 3, 2007. The chart below shows posts per day and you can see the gap on it:
Here's the same chart but for monthly posts:
Unfortunately I'm not sure there's a way to recover the stuff from there, which is unfortunate because the summer of 2007 was a really popular time in our forum history. So keep this in mind when doing historical research.
Here's the same chart but for monthly posts:
Unfortunately I'm not sure there's a way to recover the stuff from there, which is unfortunate because the summer of 2007 was a really popular time in our forum history. So keep this in mind when doing historical research.