Well someone from the Buffalo side said Kane for Schwartz (won't even discuss how preposterous and uninformed that suggestion was) and then we've seen Dunn/Walman + Kyrou/Thompson or the even more laughable Thomas + Fabbri. Blues fans can't really overrate the prospects being discussed in this thread because Buffalo fans seem to think they're going to snatch someone off the current roster. The trade with Schwartz included had to have been a really bad joke, the Thomas and Fabbri proposal is light years away from being remotely palatable for the Blues and anyone that thinks they'd be able to land Dunn for a rental is extremely misguided, not to mention there was an add of a top 5 organizational prospect on top of Dunn.
Honestly, the only realistic proposal that's been thrown out is Kyrou and Noel for Kane. I think the Blues would need to add a pick on top of that for Buffalo to consider it but at least its a start that could have some legs for discussion. This pretty much boils down to Buffalo fans wanting to take advantage of having a great rental player that isn't in their future plans and Blues fans not wanting anything to do with said rental no matter the price, especially the crap that's been thrown out thus far.