I recently came upon two similar artists, both by subscribing to major artists who were "featured". Then again, we usually allow crediting artists without their consent as long as the release actually exists.
The artist KHarless added a release featuring Troye Sivan. I tried to contact him and got half a reply. The release is already removed by @stupidname who seems to have done some cleanup. The artist definitely has a few actual releases, but I'm thinking that at some point it seems like a lot of work to go through all of the releases to keep a mostly fake artist. Some more context can be found in the "label's" edit history on Discogs.
Do you think it would be alright to just delete KHarless? He has a lot of releases that could exist, but I sure don't feel like going through all of them to find out, and its more wrong to have false releases in the databases than not to have true ones. One alternative could be to remove all releases not currently available on iTunes, though its still a bit annoying to have to go through something like 20 releases to do that. This option leaves a possibility to comment on each edit with proof of existence.
The artist Jessica Butterfield seems easier to just delete, since I couldn't find any proof whatsoever for her existing. Tried to contact two weeks ago. For some reason all releases are actually entered as pseudo-releases, and reverse image search reveals that the covers seem to be based on cropped pictures of the model Barbara Palvin. She also claims to have been involved with the featured Niall Horan.
Can Jessica Butterfield be safely removed? I'll leave a note on her latest edit directing her here, in case she would like to respond.
I actually found it quite fascinating to see that this is a recurring phenomenon. I suppose it's supposed to make them look like established artists for fun or promotion.