Doesn't mean it's good, either. Like I said - it has novelty value and that I get. You want to add some intrinsic reason to use it in your game. But, IMO, it is near the top of the list in sub-par weapons. Of which there are far too many in this game.
I agree, and that's why I never said that. 
I used words like 'not that bad', 'pretty decent' and 'not crap'.
I know it's not a good weapon (I expect a bit more from a rare gun), but it's not crap either. That was my point - GPSMG is not crap.
As for the sub-par weapons, I feel that there are only a few of them. But that's just me. I feel that we have so many OP guns like talon, arc pistol, harrier, hurricane, wraith that make decent weapons look bad.