No, they shouldn't and there isn't any SANE reason to point out other hubbers, simply because of their actions. The forums are a public domain, based on HubPages. These people have just as much right to their own opinions as everyone else does.
There is NO slave mentality. Not unless you feel like you're being treated like a slave for some odd reason.
Yes, there are some people who mock others. Then again, there is also a bunch of hubbers, who will jump into a thread, just to simply HI-JACK the thread and take it off topic. What do you suppose is done with them?
Sorry, if you feel like you're being criticized. There are lots of people who are criticized, but simply go about their business.
No, there shouldn't be a list. Unless YOU want to be at the top of the list yourself. Therefore, we know who to start with first? 
Legal issues? There are no legal issues or even laws being broken, by one person voicing their opinion over the other. There is already enough restrictions and clarity about the rules.