Some things I noticed.
1. Theres a lot of users in my area who took the time to sign up, but didn't actually make an edit. I'm sure they wanted to add to OSM, but didn't want to use the editor for whatever reason they had (ie, didn't want to break the map, confusing editor, etc)
2. Other apps and websites are what have been dropping those hated bug icons visible in our editors. (skobbler, mobile apps, etc)
What if OSM.org had it's own 'feedback' button, so that people can say things like "'Joes Coffee' here" "No, this street is called this" "road connects here" "private road".
Google has it's own 'report a bug' feature. We should have our own 'report a bug' feature.
I think human written notes would be better than the mobile app generated bugreports which have generic 'wasn't routed the right way' type of comment.