Seth Godin has recommended this approach for years, and it's the only one that makes sense to me. If you get more responses than you can handle, then either (a)

Seth Godin has recommended this approach for years, and it's the only one that makes sense to me. If you get more responses than you can handle, then either (a) something is really broken and you need to fix that, or (b) you have huge demand and need to figure out how to get the resources you need to manage it. That might be as simple as sending them all to a tracking system, or it might be as complicated as getting a real support staff. Either way, the status quo will lose users, especially if your competition starts listening. Come to think of it, this is really just an application of the principles in the Cluetrain Manifesto.