Originally posted by Cynical Bastard
I don't consider it to be criticizing a band's songwriting skills if a person says they really don't like one part of a song or that one of their songs isn't very good at all. There are songs by some of my favorite bands that I dislike and will comment on how lame they are whenever the opportunity presents itself; that doesn't mean I like the band any less. You can be a dedicated fan and not always be positive, just as long you're being honest and not just putting down the band to be an ass.
And besides, even if someone did comment on something lacking in an Opeth song, why would that make them less of a fan? Sure, Opeth can write better songs than I can and probably most of us, but that doesn't mean they're beyond the realm of criticism; not everything on here has to be praising them.