What do you want to discuss? Most things that can be discussed are and have been. If you want interesting content, you need someone to produce that content. People with motivation and some knowlege or skill or other way to create value. All the people on the must read section are banned or selfbanned. When all your best posters are gone for one reason or another, somthing is obviously going wrong.
Maybe that is the price for keeping things vaguely about real inceldom. Maybe if you relax the rules, you turn into another 4chan or looksax or who knows what. Same with LGBT shit. Maybe a lot of autists on here are secretly not 100% straight, but if you let LGBT stuff be posted out in the open you will be overrun with trannies and fags and everything turns to trash.
But there is a cost to keeping everything so strictly regulated. And more regulation will not revitalise the site, it will only strangle it more. If anything, I would look for what rule you can relax with the lowest risk of fucking up the core appeal of the site.
Oh, obviously I would stop all the edgy shit or at least give it some super intellectual packaging, turn "fuck niggers" racism into slightly more marketable science-base race realism, but I don't think people would like, care or go along with it. And it's kind of nice to have a site where you can say anything, even the most extreme and stupid shit. Sometimes I read something extremly offensive and think "mhhh, you know what, I think he got a point", but most people will run away at the first sight of all the extremism on here. Most normies and even most always online people. Many race realists will run away because they can't stomach rape advocacy, many AOC interested people will not care for constant race wars and infighting over height and face and who knows what. We fitler out most people from most groups, even extremist groups.
We need to find a way to filter less, not more, we need to find some part of the identity of this site that you are willing to sacrifice to get more people into the user base. The site will change, but at least you can try to influence what changes. And with the changes, more content and posts come as well, as the upside to the trade-off.