Harassing a DT
ANN bumping, which is negative to the forum.
Plagiarism.
Ban evasion.
I removed the things that I agree with in the quote but have left some of the ones which I think are highly subjective and could be argued either way.
Plagiarism - I think a lot of people would argue that this is a moderation issue and not something that members should be taking into their own hands. Simply report and the user will get banned and that's a far more effective way than leaving a tag because its permanent and actually achieves something.
Ban Evasion - Again for the same reason as Plagiarism.
Harassing a DT
Harassing a DT - Depending on what kind of harassment we are talking about but if we are talking about just annoying a DT member then what is the difference to a DT member than a regular member of the forum? usually harassment can be sorted with ignoring the user and probably is not tag worthy in the majority of cases.