If an user unknowingly or not use or add the wrongs tags, isn't the community task to correct them (I mean the tags, through if the user ask for guidance it's cool for me too, I'm all for teaching :D)? A titanic task of what I'm one of the most assiduous contributors since little more than a year (anyone wants to help, feel free to join :) ).

I have not found any sort of discussion that tells me that I'm wrong with the reasons behind the re-tagging, and actually found a post in Meta.SE that seems to agree with my position:

Extraneous tags should be removed, improper tags should be removed, and "meta" tags should be removed. (emphasis mine)

Is this guidance wrong? Or I interpreted something different (I believe it's pretty straightforward and explicit)? I'm hurting the site when I re-tag a question (I'm even giving more priority to unanswered ones)?