I know of several bands that truly deserve recognition, but never got what they deserved.
A good example of this is the Proto-Math Rock/Progressive rock band Cheer-Accident. You know how slint kind of created math rock in 1991? Cheer Accident was formed in 1981, ten years earlier. But guess what? they only have about 3000 listeners on last.fm, and they barely scrape up enough plays weekly.
another criminally underrated band is Storm and Stress. They were an improvisational math rock band that featured Ian Williams, and they only have about 5000 listeners, but that's mainly because of a post-hardcore band of the same name. They released two albums and Ian admits that it was the least successful of all of the recording bands he's been in. But, it's also his most experimental.
I've created a group called the Ian Williams appreciation society, but nobody joined