I just created negative-attention for the two Streisand-effect questions (1, 2). I looked at our tags first and saw mistakes and backlash. Neither has a wiki, and the questions on each seemed related but not quite the same.
What changes, if any, should we make to these three tags? It's possible that negative-attention should be a synonym of backlash, as the former nearly-inevitably leads to the latter. Having a synonym rather than just retagging would produce a match if somebody starts to type "negative", which seems helpful. But I don't know if that's true or valuable.