I don't have any first-hand experiences to relate, but I have read a fair amount on the subject and what you describe sounds pretty accurate. Some of the men who frequent these place readily admit they con't practice safe sex. Others have actually admitted they want to contract AIDS as some sort of act of solidity with the afflicted. I can't explain it other than to agree that it is a sickness. This is one very screwed up bunch of people.
If you kept your lunch this long, take a gander at this bath-house expose:
In case of link inoperation, just go the www.thestranger.com and look up Christopher Frizzelle's "Bleak House"
BTW, I avoid Seattle like the plague.