I was curious about this. Do people dim the monitors when they visit google.com or yahoo.com? They are even brighter than this site?
Well, yer bathroom is prob'ly as bright as you can stand it too, but you don't spend a lot of time in there. When you go to your office/livingroom/wherever you relax and spend more time, that room is much less bright than your bathroom. Same with Google - I go there, do my business quick and get out. Google's brightness is not an issue. All the websites and forums I spend the majority of my time... they aren't anything like Google.
In your defense though, as a webmaster, I want to say to the one or 3 people who seem to think the priority here is what search engines thing about the site, you couldn't be further from the truth. I have no doubt the admins and techs here are working hard to make their members happy and comfortable so they keep posting content. But that content is useless unless it can be shared with all the other photographers out there in the ether. That is Google's and other search engines' job. If you don't follow certain guidelines, then you pay a penalty - fewer indexed pages, fewer visitors, fewer of everything this website has to offer. It's not a private club.
Jim