I realize the irony of what I'm about to say, but I don't think rantings of people on message boards, specifically in the emotion of the moment, is the best indication of the pulse of a fan base. The people that care the most are the most hyperbolic and also the least likely to not go. It sucks as a fan, but it's the truth. Attendance might dip a touch, but it's not going to be some sort of mass exodus. They missed out on a big name free agent. They were in fact serious players for him, despite you refusing to believe that, and they didn't land him. They are in a rebuild. They missed on a big name FA. There will be others. Breathe.
But JR with the Sox isn't close to Old man Wirtz. That's just crazy talk.