In reply to Rasmus.

Actually, the Postmatic plugin does this. It's a simple modal popup with something like 6-8 choices for why you're deactivating the plugin. Very simple, and extra 2 clicks and done. Options they provide cover every scenario, including debugging.

I thought it was a bit intrusive at first (I hate being quizzed when I'm not expecting it), but after a few times while I was debugging an issue, I saw it as a positive feature.

I agree that this can be abused, but the way the Postmatic devs did it is perfect.