It seems that following people is the essence of hubski, and that following tags is just a convenient way to find new, possibly like-minded, users. Also this, which you said: Hubski tracks influence as far as who follows who, but eventually the whole thing crumbles because once someone starts indulging interests that don't appeal to you, your best bet is to dump him entirely, good with bad. Seems to me to hold particularly true for tags. But it's not one user, it's a crowd creep. -That's one of the failings of subreddits, IMO. I did code up the ignore-by-tag for external posts. I'm going to test it more, and maybe push tonight. I have been working on PMs, and I think that's something everyone can agree should be done. (I think you'll dig the way PMs work). Anyway, I have to pass some cells, drive home, and cook for and entertain some company. I'll revisit.