Tags are quite helpful when searching for question on a specific topic, and they are also used for Google searches. Therefore a nice base of tags like we have is precious and should not be spoiled by clutter.
Occasionally I stumple over tags I do feel they are quite useless. These include tags that have not much to do with Ubuntu, that may have typing errors, or that are already available (maybe with a slightly other interpunction).
A recent example of such a tag was .deb (note the dot) where we even had a tag wiki suggested already.
What I did here is, I rejected the wiki suggestion and removed the tag from the question (that was already tagged with deb) hoping it will disappear over time.
However I am not sure if I did the right thing. What is your opinion on this?