Throwin' ideas at the wall: If I click to remove a tag it will stay but if someone else does it independently then it will be removed. Add/remove people as you see fit. If I follow a tag give me the ability to correct mislabeled posts for that tag i.e. if something is posted under #feminism and #mensrights and I follow feminism then give me the ability to change that tag only, since I follow it. Make me give up a badge to remove a tag / all tags on a post regardless of anything else. Other topic: I'm still for even harsher functioning of the block function and think it should completely remove that person from my Hubski experience by additionally making it so I flat out don't see their comments on other peoples posts or anywhere else.
This is why I so strongly believe we need moderation/curation. But let's consider the problem from a different perspective: what if tags did not exist? If tags did not exist, we would only be able to find new content by following people. This is how real life has worked for millions of years, so our ingrained social rules will probably. Now, it's obviously implausible to directly follow everyone who might post content on a subject you're interested in, or even follow everyone who is close enough to share it. Which is where a degree of implicit trust comes in. Some magic formula (left as an exercise for the reader) takes into account indirect follow chains and (to a lesser degree) simple share/upvote chains. New users can still enter this ecosystem. As soon as someone upvotes one of their comments, they gain a little implicit trust so other people can see their post. Now the only question is: where do tags fit in? I'm sure everyone claims that they are useful, but how? Unlike subreddits, tags are not the primary way I discover content (for me at least). And most of the tags I do see in my feed I added because I saw people I follow posting in them. I think that tags are only useful as a way to filter posts that I'm already seeing for the sake of seeing a longer history. --- Yes, I am aware that this will lead to a bit of a walled garden effect. But, remember that it only removes the visibility of posts, not comments (unless you block them of course).
I'm going to be honest here (and please, this isn't anything personal against you) but I have no interest in a discussion about tags right now so I'm going to leave you with a history of tags and all that good stuff to provide some background information and other discussion. Also, if you look at previous discussions you might notice a bit of a difference in attitude and vibe going back compared to now.