Oh so, not the tagging on Last.fm? The actual track info? xD Aha, never do that either lol. Had to Google 'metadata' so I apologise if I'm mistaken again!
Yeah, I think I'll try it out to see what it's like. If too much stuff gets scrobbled incorrectly or if it's too inconvenient, I'll probably upload some HQ artwork for some releases, then ditch it.