Yes, you are right. It's a sad truth. We have created checks for bad behavior elsewhere, and it was probably only a matter of time before this became a problem.
I kind of have to agree with syzo here. I will readily and openly admit to using both the #troll and #spam tags. I do not know if these are the tags in question, as I personally do not find those tags out of line, but if they are I apologize and from here on out will refrain from using them. As for de-anonymizing tags, I feel that it actually fits in Hubski's philosophy about people being transparent and forward.
But, see, I've seen your troll tags and they're helpful to me. I tend to take bait pretty consistently and the troll tag was a nice reminder for me. I'm not sure if that makes it any better, but it did offer some benefit. It's an interesting situation because there are times when I find some of the articles posted by a user to be interesting and times when they're not. When another user feels the same way those tags seem to work to my benefit. i think the short term, user controlled solution is to come up with a "neutral" tag that can be filtered, but I'm not enough of a word person to come up with something.
I hope you don't stop using the #troll tag, I find them incredibly useful. I tend to follow tags like #gender and #racism etc, so it's good to have a tag to let me know whether it's a good post on those topics or someone posting some weird strawman or bigoted view. It just adds more information and I can judge whether I want to get angry by reading ignorance at that point in time, or save it for later. I was actually getting a little frustrated with Hubski because I had to sort through a bunch of shitposts to find genuine topics, but the #troll tag did exactly what I was looking for.
The tag system is one of the things I think could be improved in some way, but I have no idea how. The amount of tags you can have on a post feels somewhat limiting and I'm not too big of a fan of the community tag system in the first place, but at the same time the amount of tags you can have does limit how much someone can abuse it. On Tumblr and Twitter, when you repost something you can change/add/remove any of the tags as you see fit. That would be interesting for here but would be pretty easy to abuse without complicating everything 100x. I'm also interested in what can be done with what amouseinmyhouse suggested with tags (reminds me a lot of personal tags).