Well you certainly have a lot of experience, but I don't think only posting on GAF is right the way to get heard, especially if you're hoping to incite change or provoke thought from the devs. GAF just doesn't have a large fanbase for Gears, or one that cares to participate in the OTs and the community. Gears 3 didn't even pass OT2, whereas Halo is at OT16! And if the community isn't there, I doubt the devs will stick around.
Not too long ago in the Halo OT, one of the members made a huge post about how the Halo brand has been damaged by 4 and it made the rounds on Twitter from professional players to people from 343 Industries. (http://www.neogaf.com/forum/showpost.php?p=52385775&postcount=19025, https://twitter.com/GH057ayame/status/319448126161297408)
That's the kind of attention you need. Even if they stick to their guns for Judgment, they need people like you to challenge their ideas in hopes that things will get better in the future. This all probably seems really odd of me to say, but that thing you said about "really tired of fighting this same old fight with the devs", it just made me think that maybe you're tired of fighting, but perhaps you've been on the wrong battlefield?
I used the EPIC forums alot through GOW2's release and everything fell on death ears and not to mention the forum was very, very immature at the time,
and people were asking for some ridiculous changes that gained traction (dat GOW2 shotgun power)
We had Cliffy B around allot for GOW3 beta and retail release, he would dip in alot and let fans know that he would always read through and engage discussion on GAF threads (shout out to PXG,Alienshogun, Arnie , zlatko some great post's by all back then) GOW3 turned out to be amazing, really nothing bad to complain about (small niggles) all the GOW3 beta feedback was taken on board and executed well.
For GOWJ, man... i dont know where to start.
thats the reasoning why so many GOW fans just feel like its wasted breath, Fans along with EPIC built the game back up after falling so hard on GOW2 (which also had feedback from GOW1) that i finally felt comfortable were EPIC's was going to take the MP franchise, boy was i wrong (againx2) GOWJ goes against nearly everything that makes Gears unique,fun and intense, we need to go through another beta just to get back to GOW3, this is where the fight ends and the dip in numbers is significant.
I cant argue against Lack of content, No Locust, FFA centred design, Poor Map design and plethora of other mindless and missing changes.
TLTR: GAF is where its at
The problem is Epic does not view a sequel as a "keep the things that work, change what doesn't" approach. Epic has the worst online implementation strategy when it comes to games. Let's take a look a the biggest offender, the manner in which multiplayer is set up.
You summed it up so well in your first sentence, totally agree.