It is a bit out of control-- but then, that's an expected attribute of the process, which goes:

Forming
Storming
Norming
Performing

You're seeing a hot topic fueled by passionate people, and one idea from one person begetting 3 more from others. Typical Storming phase.

Some solutions are certainly ripe for Norming, and even Performing-- but they are well out of the ability of proposers to implement. They require a champion, and of course Doers.

FYI, the group development process: http://en.wikipedia.org/wiki/Forming...and_performing