It's not stupid at all if you know that you are taking a risk and you have the ability to patch things up that prevent your users from using the forums.
Jelsoft is running it on a live forum We certainly can't call them stupid, can we?
Running it on a live forum is one of the best ways to get data to the developers about bugs and such. But, it's not something I would recommend most users do. You need to be able to understand code errors, database operations and such. Otherwise, you're just asking for heartburn and problems.
Hmm just what have you left this tread open for now............he he