I'm not trying to be rude, but some people seem to be missing the point. The point is, as both Stahlratte and Khai have said:

Loss of functionality

From my perspective, I'm not that bothered about the look of things (though the old site looked much better IMMHO), and I'm not that bothered about speed. What I am very bothered about is functionality! Now I guess I can see why some are asking what all the fuss is about. The thing is that diffrent people want diffrent things from the forums. I use the forums to search for, transmit, and recieve, technical information about Poser and other software. Doing this effectivly, means to me, being able to use "pre" tags to display indented code, being able to post text files as an attachment, and having a reasional search function. These are all instances of functionality that have been lost in the new look forums, and these are only some of the ones that matter most to me, there are other losses. The old search function was not great, but it was adequate, the new one is next to useless for my purposes. Now I can see why a lot of this stuff might not matter to some people, if you want to discuss art, or the relitive merrits of some application, then this sort functionality might not be important to you, and that's fair enough. But please understand that these things are very important to some of us, quite a lot of us judging by the number of posts on the subject. In regards to Poser, Renderosity was the best site for me, now it is the worst. I think it is quite legitimate that I, and others make our feeling known on this matter. If you are happy with the new style site, then be happy, but don't knock us who are not happy, consider that we might have valid reasions, even if those reasions do not apply to you.