I agree with you, having to keep tabs with thousands of new services is annoying.
In that case though, you shouldn't have to worry about missing some users' feedback. That's why you have to register your project with FeatHub before people can give feedback (we temporarily enabled anonymous import to boostrap the service, but that won't last). This way, as a repo owner, you know you have enabled FeatHub.
Also, it's not implemented now, but we could imagine notifying owners on a regular basis. I suggested the improvement there: http://feathub.com/feathub/feathub/+8
Example: https://github.com/mitchellh/vagrant-installers/issues/12
You shouldn't have to opt out of stuff like this.
Also here's the whole Twitter conversation: https://twitter.com/feathub/status/591715888782520320
I'm starting to think that creating a newer, extensible IRC client might be an opportunity.
It's difficult to be omnipresent so I can track all of the different pieces of feedback my project may be getting; even though it's not ideal I'd rather everyone just funnel through Github issues just so I can interact with them and be aware of any issues or requests. I don't want to miss out on any feedback should it be on an external service I do not know about.