Hello Dia. Thanks for taking the lead on this and setting it up for us. It will be nice to read ENGLISH in Papercraft forum without having to use google translate or babelfish.yahoo lol.
I'm putting this here to offer you some suggestions, and to let the other members post ideas as they come in.
1. Your little tags idea, showing what each post is about? THAT would be a cool feature to impliment. I don't know much about this specific program (read: nothing) but it should be a simple matter to add the button selection process to your CREATE THREAD page. Then, in the FORUM, there's usually a tag showing the post "status" (ie. HOT, BUSY, Slow, etc) you could just replace the lines of code that tell the main forum software to display this icon with your custom icon.
2. A General discussion section, maybe in the ANNOUNCEMENTS forum, so we can have non-post specific topics. This should help absorb some of the cross chat that would otherwise be bound to pop up in most of the threads. Ya, we haven't been too active in /po/ but maybe now that we have a home, we'll start seeing multilingual visitors.
3. Maybe an IRC channel as well, or a "chatbox" style plugin. (you can see a chatbox in action on the e-107 forum main site @ www.e107.com) Again, its a place for members to blow off steam (and spam) without spamming up the forums. (think of it as a /po/st without pics) THIS HAS BEEN ACHIEVED THANKS TO YOU! ~Paper
4. File Uploads: I see that images are allowed, what about different filetypes. PDF of course, but what about .zip .rar .7z or other archive files. The only thing to watch out for is 1. file size. Some of these things are bound to get huge. and 2. VIRUS or TROJAN. That's why the files uploaded are limited. Also I'm not sure what kind of coding (html, php, etc) can be entered into the post area's. You might consider disabling some of these. My webforum got hacked up pretty bad and it took me 3 weeks to fix it because some member loaded a PHP file he thought was cool, and turned out it had an embedded hijack tool in it, that invaded the site, and turned it into a porn site for 24 hours. (try explaining that to you 14 year old nephew when he comes to see the site you're running… not fun)
Other than those 4, that's all I can think of at the moment.
If you need any help, give a holler. I have a few years of Forum Ownership/Admin/Moderator status on other forums(www.evamade.net is mine), so if you need to bounce ideas off someone, don't hesitate.