I think if Moss makes it known that he does not want to play for any team except the Patriots that will scare teams away from claiming him.
Why?
If he makes hat known and you claim him and he acts like a child and doesn't report or sign a contract, you aren't on the hook for Anything and the Vikings pick up the tab. You've also blocked him for playing for anyone else since you have the wavier rights.
I guess he could be a total mullet and show up, sign the deal then pout, but who cares? Send him home, prorated your on the hook for 2.8 million, and he's gone at the end of the year.
I don't really see this power Randy has over the waiver wire I've heard all day. If I was the jets for instance, and his agent made it known to me that Randy wouldn't be happy being claimed and wouldn't report, I would claim him anyway and say "sweet, then he isn't playing for anyone this year and it's on minnsotas dime."