In my opinion, the genre tag does not make sense on this site.
The main reason being genre isn't a music concept it's a music industry concept. Genres exist not only due to the music that is made, but to many other marketable aspects such as image and location which takes away from the part which we care about and are about which is the music.
The second reason is most genres don't have clear cut definitions and what a band/artist is sometimes left up to interpetation. One band of the top of my head that has this property is Coheed and Cambria which is described as many diffrent genres including pop punk, prog rock, and post hardcore which none of them describe them accurately.
When someone talks about genre on this site most of the time anyway they are talking about the styles of music which we do have a pretty popular tag for that.
Of the questions tagged with genre, two of them the tag makes no sense on and I have removed it. Of the remaining questions that are open there is only one question where it kind of seems necessary is the question about creating new genres. Even with that tag the elements that it is focused on the creation of a new style absent of any traces of what we currently have which can be discussed without using the term genre.
