Of course some of them are!
I've met many good friends from this site from back in my chattier days. I used to private message chat all the time in there, in fact I preferred it back then. But same as with everything, chat has its ups and downs. And the time eventually came where I felt I needed a break. The desire to meet strangers through a chat room faded, and my needs changed. Nothing wrong with that.
Just cause I can completely understand why some don't like to PM doesn't mean I can't understand why some do.
Please respect the introverts.
None of us called it an eternal damnation, lol.