people are very fickle. 3-4 months ago he was the hot name.
Corey Davis, according to FBG chart, is worth an early 1st. And that's probably fair. the top 3 rookie WRs have similar upside as Davis still does. Anyone who owns him should know that the biggest reason he isn't performing well is the offense dysfunction.
I'd certainly try to buy low if I could. Could probably trade a high 2nd or low 1st for him if his owner is impatient.
I know in my league if I offered him in a deal, the other owner would view him the same as the guy above did, "he sucks." so his value in an offered trade is pretty low.