Right now, we have over 150 threads crammed into one subforum, whereas the Collector's Corner has just 5.

It's time to create more subforums, either for developers to showcase their games or one for specific games.

I disagree. Most of those 150 threads are spent topics anyway. There are only a very few active topics in there. That’s just natural in forums like this. If this were my forum, I would consolidate even further :p I get overwhelmed with too many, too-specific subforums, although I will agree with you that a developers’ section might be nice.