I don't think the public has anything to do with Zynga's failure. They've been losing mindshare and players since well before the IPO, and Facebook likewise has

I don't think the public has anything to do with Zynga's failure. They've been losing mindshare and players since well before the IPO, and Facebook likewise has been closing the door on spammy app behavior since well before the IPO as well. Zynga's failure is entirely its own doing.