Should disabling the feature go both ways?
I wonder if that wouldn't be a confusing user experience for some people - especially people who don't know that it can be disabled.
You get used to the idea that the heart button is there for "people", and then, actually, you start to recognize "people" by the heart button. And then suddenly some people don't have hearts? That might be weird.
Yeah, it would be weird -- but we could make it obvious by having the heart icon in a disabled state, and a tooltip saying "this editor has disabled WikiLove" or something to that effect. Which might be a useful cue, in any event.
I think either options have merit. However, at its most basic level, WikiLove is just an easier way to post something nice to someone's talk page. By that logic, you really shouldn't let people say "no, I don't want people to post to my talk page with this" anymore than they could stop people from posting barnstars to their talk page before. Does that make sense? That would just be going with the status quo though, you might decide that it's a better situation all around if people were able to disable it if they chose to.
