The internet has brought the microgenre to most music fans' radar at this point, whether they're making snarks about how Opeth is the first blackened avant-death metal band or sifting through the latest chillwave on their favorite blogs.
I think most regulars here agree that smart use of these descriptors can be a blessing in finding new music, honing in on fairly specific styles and sounds. It's certainly easier to sample your punk buddy's favorite d-beat records rather than plunge into his entire collection to find something that sounds like Final Conflict.
In addition to microgenres, I think this thread could also serve as a haven for less formal collections of artists who exercise rigid focus, such as drum-guitar garage rock duos, groups exploring genre themes exclusively acappella, or power electronics artists consistently addressing specific serial killers in both their audio and visual output.
I would like this thread to become a place to go for these specialized recommendations, guides, lists, and discussions.
Help me get this going, y'all. I'd like this to go further than my krautrock and no wave threads.