That's where it gets tough
There's no perfect answer to that. I guess it would depend on what you value more: accessibility or the artist themselves.
Say someone makes a song about tickling their cat (only example I can think of atm, haha) and it sounds terrible. Some people will say it's trash because they don't like how it sounds, or they hate cats (subject matter). But some people may be like "okay, this guy loves his cat. I don't like the song, but I can see he really put his emotions out there, even if I may not share them".
Beauty is in the eye of the beholder. As is realness, I think.