Sure, technically it's ripping and spreading but no different from ripping a pic you like from a demo and spreading that, which I would feel OK with if it was properly credited.

I think the lack of credits here is disconcerting but on the scene, there's a constant unsolicited spreading, uploading and sharing of material - especially nowadays, for historical reasons.

I've had pics ripped and used in other people's productions without credit. It's a bit flattering but mostly it's just annoying; I would have said yes right away if asked. On the other hand, I have my pics and (recordings of) demos uploaded to various sites all the time which is OK as long as I'm credited.

I've slapped a copyright claim on one of my demos on Youtube once, but only because the guy who ripped it did such a crappy job it was completely unwatchable.

Edit: What I'm trying to say is that the scene in general has its own take on copyright and fair use. For example, check out http://scrolltexts.com/