I have been in congregations that rope off the back rows supposedly for families with children or latecomers. But what if families came early? Too luck. I knew a sister that wanted to sit near the back near the restroom because she needed to make a quick dash...get my drift. She had a chronic condition but was trying to make all the meetings as the "brothers" had counseled her to do. The attendants were not going to "let" her sit there but she did anyway along with an older (93) anointed sister. When the attendant got an elder to reinforce his authority, the older sister said she didn't imagine that there were seats roped off in heaven.
In another congregation, an elder's wife would routinely move the ropes and sit in the back seats (no children) because she liked to see who came in late and who went and how many times to the restroom. I have been in congregations where people moved your belongings to another seat if they wanted yours...that was pretty extreme.
I have been in congregations where no one sat in the first 3 to 4 rows in front. Once the public speaker invited the audience to move down a couple of rows so he didn't feel like he had bad breath.
I know a disabled sister who sat in that area who had an attendant tell her she had to move. As she got up to move, it was extremely obvious she was disabled and had mobility problems (amazing what MS can do to a person).
Well, I'm glad to hear that people can defy the attendants and not be ejected.