Maybe I am a little bit old fashioned but I don't think the new forum is user-friendly at all.
Unless they can transfer the data from the old forum to the new forum. The switching of screen via link to the old forum and back and forth is really time consuming and confusing.
I don't think I will post more under the new forum and I think the hit rate will slow down for this website because retrieval of useful information on girls and shops/agencies are now much more inconvenient and complicated.
Furthermore, Admin has to maintain the old site for indefinite time frame because all precious information on girls and shops as well as past PMs of individual member are only available in the old site.