TF2 will also never die fully, but the catch 22 is the playerbase will get more demented as time goes on as more of the chuds/normal people age out and focus more on life instead of video games.
Doom(1993), source games, rust, minecraft, etc. are all filled to brim with rejects, trannies, and freaks because they're less demanding on your PC, cheap as hell, provide some sort of social interaction, and have mod support so you can play them forever technically.
This is great if you're a super autist and can't control yourself from screaming at customers at your job and getting fired within the month. 50% of the people you play with who are under 30 years old are likely so dysfunctional, they can't go outside and work a basic 15$/HR retail job to save up money for their hobbies.
Just look at that 29 year old nigger who shot up that ICE facility using a bolt action rifle and only managed to kill illegals, then shot himself.
EDIT: I also realized the core issue as to why shit like SaveTF2 failed and the community book full of signatures failed.
Valve only cares about the game so the Economy doesn't crash and cause a ripple effect to CS2 and Dota 2, Everyone knows this.
The community is also filled with fucking pathetic hardcore NEET gooners who don't want to sacrifice anything. They could run their own servers but that would require them to have a stable stream of income to pay for them which would mean:
1.They'd have to take a shower
2.Dress nice
3.contain their autism for 4-8 hours a day
The "matchmaking consumes community servers" is an old retarded excuse as to why they can't make shit happen. They're just poor lazy losers. We ran a community server back in 2013 while working part time jobs back in the day. One server I play on is a 64+ player server that costs 90+ dollars a month to run. divide the costs among regulars and make it fucking happen.
Get a Job, Nigger.