These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Broken Base: Wilson's solo career and his friendship with Mikael Akerfeldt seems to be this for fans, due to some feeling betrayed Wilson put Porcupine Tree on hold for his solo career and his influence on Opeth changed their music, Ironically since Wilson helped produce Blackwater Park and the beloved Damnation.
He's also a regular in several other bands like Blackfield and No-Man, has performed on albums by Dream Theater, Opeth and Pendulum, just to name a few. Productive guy.
This is not even getting into his solo side projects, which aside from the obvious self-titled stuff includes Bass Communion (ambient drone music) and the Incredible Expanding Mindfuck (experimental rock). Productive doesn't even begin to cover it.