Interesting that you post this SG because I was feeling a somewhat similar reaction. For me, when I read Dom's posts I feel like he is discounting anyone who disagrees with him and that he seems to imply that anyone who disagrees with him is completely off-base and misguided.
I went back to his early posts on the DB boards (only read a couple) and found this quote from him about his wife:
she said that I "always try to control her"; "treat her as inferior"; and so on.
From his posting here I understand how she could have felt that way. His arrogance combined with his forcefulness and habit of not reading to what has been written if it does not fit his theories could definitely give someone the impression that he finds them inferior.
But what is happiness except the simple harmony between a man and the life he leads? ~Albert Camus