I feel kind of petty and foolish posting this, but I guess I just can't help myself.
A few days ago I received a lengthy and somewhat annoying PM. It wasn't annoying enough to report and I took the time to write a good faith reply. Submitting the PM resulted in a message that the recipient was blocking my PMs. I assume my correspondent was rightfully afraid that I'd point out the flaws in his thinking.
I was stunned at the sheer cowardice, but I was mostly annoyed that a hit-and-run PM like that is possible, especially since I'd never PM'd that person before. I'd still like to send the reply without going public. Does anyone have thoughts on how to do that without breaking any rules?
Also, can anyone explain how to block PMs?