Nero never strook me as a typical emo.
Emo-ness is often associatied with depression and/ or a sense of impending doom as like with Irukandji Syndrome which is famously caused by the jellyfish type Carukia Barnesi. (This is not to say that many or any emos for that matter, have had encounters with such species I was simply making a comparison.)
As it stands I know several people who would class themselves as emos. However, almost none of them fit the stereotype meaning that, at least in my experience, the stereotype is a minority. Therefore the baselessness of the derogatory use of the word 'emo' is confounding to say the least. Therefore, just like 'gay' if this is to be continually used as a derogatory manner, as is implied by the first rule of this site, repercussions should come swiftly.