Well, I have intended before to try and create a copy of the forum with no modified files and import the database and see if perhaps the "thank" will work again, for example.
I'll put this back on my to-do list. I have no excuse not to get it done since I'm not working right now.
edit: Uhhhhhh... I used Installatron to clone the forum to
https://forum.simutrans.com/index.php/topic,19787.0.html - but what's scary is that after I did some testing there with the Like mod, it appears the like mod is working here again.
Which implies they're connected (perhaps using the same database and/or files)
I'm gonna take a break from testing and modifying right now so things don't get screwed up.
There are weekly backups made every Sunday, so theoretically we'd lost no more than a week at worst, but.... yeah.
edit2: Definitely using the same database. I'm editing this post from the test.forum.simutrans.com. Soooooooo, yeah. Won't trust Installatron again on this, but I did tell it that the test one would be "staging" so I could move changes back to live. That apparently did not work right for SMF. :|