The problem I see is SuperCheats has never been a member oriented site. It's an information hub. People come here for game cheats and help, not to mess around on a forum. The forums have been glued onto the side of the site up until the VG boards were put up as part of the main site. Now it's just the general boards that are a tag-along.
The forums are a stale toy for most of us. We played with it for a while, but since no TLC was ever put into really changing it, people got bored with it and moved. This mainly applies to why the Teams community up and disappeared.
Now they're all stuck on PrimeLeap, and we're making sure that never happens there. I work on those systems 4-6 hours a day, so there's something new to play with when I release the monthly versions. Like notifications. Cross Stinger and I just started working on that system a few weeks ago. It's not pretty yet, but it works;
Ease of access is what makes people want to communicate. A lot of people have been bugging me about making a mobile application for PrimeLeap, since that's what really draws people in. You can't always be on a computer, and having a web only site isn't great anymore. Even if it's crappy, some way of interacting through Android/iPhone application would help. I'm about a year away from learning all the Java I need to make a proper application. I'm too paranoid about security to make anything right now with limited knowledge.