I think we needed bk-MBDB etc. Trying to come up with names like ethylone and butylone that confer any meaning would continue to be very difficult when more cathinone analogs are tested.
New names for 5-MeO-* or even 4-HO-*? Why? They're listed under their TiHKAL-style chemical abbreviations on Erowid, and most uneducated people are going to look through/find search results linking to Erowid if they're looking up info on these chemicals. No reason to make it more complicated by having different informational resources index the same compounds under different names (ie. an Erowid user wouldn't think to search for 'miprocin' when the first resource they used, Erowid, has a 4-HO-MIPT vault. If another resource uses miprocin as shorthand, the user would never find the info.