I guess that is the part of this whole thing that is the most infuriating to me...before this tour, I occasionally looked at these boards but was not a member here, or any U2 board, and while I am a pretty big U2 fan and a regular concert goer, I had no idea such a thing as a GA check in existed. So, if I bought my GA tickets and read the venue rules made my plans based on those rules, I would have no opportunity, according to this system, to be in the front of this line. Regardless of any possible benefits from such a system, or what "great and nice" people run such a thing, the truth is knowledge of its very existence requires steps that are not in the normal process for they typical concert goer. If the venue does not provide GA "line sign up" information to all fans, the system is hidden and elitist. Even if, allowing for suspension of disbelief, that is not the intent of the "line leaders" (2nd grade flashback).
I know I am rehashing what's been said a thousand different ways above, but the pro-line sign-up people appear to tune out the anti-line sign-up people because they are old battle lines drawn over years on this and other forums. The sign-up people discard the complaints as typical of those people. But, damn...you are only hearing from the people already on here. If you put this information out to the tens of thousands of people who attend each show, you'd get the same "WTF?" response. Because it is bullshit. Setting up a system with no publicity outside of a community of insiders who know to look for it is hiding it, even if it is hiding in plain view on Facebook. I never would have thought in a million years to search for such a thing. And if this is enforced in any way through threats and even implied violence, it is reprehensible.