Ok, just weighing in... I've never been able to completely figure out this particular DUmmy, the story is foggy due to his limited communication skills
I know he has gone through some personally traumatic crap over the past couple years, losing a daughter (I think) and maybe girlfriend?.. now being left alone and in seriously poor health. I could never quite sort it out. He is also disabled in some way, living in a camper at some campground.
All that said, he does climb up the other DUmmys asses on occasion for being the giant assholes that they are, and for lying all of the time. It's pretty entertaining when he cuts loose on them. He also does a lot of drunk posting, which is also pretty funny when it happens and could also explain the call-outs when they happen.
I hate to admit to it, but I do have a bit of empathy for this particular DUmpass because inside somewhere is a seriously tortured soul with some hints of remaining common sense.