I'm new to this forum, but I'm a long term forum junkie. My favorite forums put out dozens of new posts per topic per day, and are condusive to interdisciplinary conversations. I can think of topics which belong equally in physics, chemistry, and "new hypothesis", but are separated out from interdisciplinary review because they must be put in one. I honestly think this site would be better if it were reduced down to about 7 topical forums, and let people from different disciplines mingle more in a faster moving forum.
Maybe this is just a personal preference, but it is my opinion.