Having said that, you do make a very good point.
If a bot could find things I like, and put it in a sensible pinboard, then I'd probably follow it.
I don't care about Pinboard skimlinking any affiliate links, even ones I'm using. (another post in this thread explained how bots would avoid that limitation with redirects.)
I do mind, a little bit, if a bot owner is making hundreds of dollars a day by manipulating flaws in Pinterest, because arms-racing could make Pinterest much less useful.