I don't think its an argument. I think people are stating whether they would let someone who is high belay them or not. And I don't think anyone has said anything against actually climbing high or any rules. But my climbing code includes that I try to mitigate whatever risks I find unacceptable. In my book, that includes me letting myself be belayed by someone who is high. There is no room to argue there. Furthermore, I would be totally fine with someone who told me that they didn't want me to belay them b/c I was not high. Whatever works for you.
That's proud, you gotta know what you want, and then you gotta take it.
And to state it clearly and without blame.
After the climbing day is done, all hell can break loose!