An idea is to franchise out, small boutique, club/hangout, social setting. Kinda like Starbucks, but for Traders. Nice contemporary layout with screens on walls, newsfeed. Multiple comps/loaded with popular platforms, or laptop hookups to bigger screens.
They are called "coworking spaces". Most major cities have them. Monthly fees but there will be others using the coworking space that are not traders but just needed a space for a month or so to do work. Yet, many have private conference rooms at a higher monthly rate than sharing the open area with others not associated with your career.
I used one when I was visiting relatives in Europe and then I used one here in Canada for 6 weeks when my house was being remodeled. Will most likely use 1 or 2 in the U.S. this summer when I travel for the summer.
It seems we're not gonna get a decent room going...
How or where you're advertising your chat room ?