Murkman
Pro
Another lil fact about ghostwriting is that Snoop back in the death row days wrote for daz. On dogg food kurupt wrote a majority of his material and snoop was also involved in the writing.
Also "I Dont Hang" by Soopafly was written by Kurupt.
If you're in a crew, and all of you co-writing or ghostwrite verses for another, that should be excused due to a group's overall songwriting approach. If they wrote the vast majority of their own material, but wanted the edge on a group track, it's plausible to understand why they may exchange writing duties.
Now if we're talking "Summer Camp OVO Tent" level fukkery on some Pink Market shyt (I would say "Black Market", but that entire crew is vaginal), where NONE of those nikkas can rap, that's a huge difference.