#1 - why do they allow Rick's group to reclaim their weapons when they first get there? Why not just pop up with the guns right away and force them to the box car? Seems like a lot of wasted bullets and maze running just to disarm them and get them in a car, when they could have put the drop on them and done the same thing.
I was wondering the same thing, but then rationalized it based on the same theory you stated below:
#3 - That bone pit/slaughter pen and Tasha Yar serving fresh cooked meat sure seems to support the cannibal theory. "joining together makes us stronger?" Ish. I bet the food she is cooking has sedatives and that's how they knocked out Glenn's group. The last line in the show is directly from the comic, so that was a nice clue thrown to the comic fans I think.
That has to be how they subdue anyone who comes in. They pretend to be friendly, offer them food and drink, don't make the people who come in nervous by demanding them to turn over their weapons, merely to lower them.
Once the people eat the food, they've consumed sedatives and when they are unconscious they are relieved of their possessions and then put into a storage car for future slaughter.
I have to wonder if the folks at Terminus will be the show's version of The Hunters. The Hunters base of operations wasn't explored much in the comics that I recall, I think it was suburban homes surrounded by fences, so from a "realistic" standpoint, having the Hunters stationed at an abandoned freight train terminal that would have naturally been secured to a degree, to avoid loaded freight cars, from being robbed, seems like a much better place to set up shop.
Almost makes me wonder if the show is putting off having to move locale to Virginia as long as possible.