Currently, there's a setting to turn on/off all saved posts' activity notifications. This is inconvenient when you're mostly saving posts for their content - say, to read later - and come up to a post where it's the discussion in the comments that's of interest. It would be nice to be able to separate saving for later from following a post['s comments].
I hope I'm not asking too much of the admins. I know it's quite a job, keeping Hubski up, and it takes time and effort. I'm just suggesting a feature that would make my experience with Hubski better.