COMF/Gato Cat/Satans Spawn
There is no need for parodys because those bros/sis you describe are already on those boards.
There is always a sister there who thinks the world is wonderful, Jehovah's people are wonderful, the people on the board are wonderful, and everything she writes is wonderful.
Then there are the bros who think they have to one-up on anything someone says. When I was a regular on WOL and witnet, I had a few spirited discussions with guys who expected me to agree with them simply because they were a MS, pioneer, or just because they had some extra bits hanging between their thighs. Guess I was too outspoken for their liking, haha!
But seriously, I hope at least a few from WOL read this DB, and will have the courage to join.