First let me start off with the games biggest problem, its not cheating it's how valve handles cheating:
It's so easy to cheat in this game, there are so many free and paid cheats out there that are so easy to get. The anti cheat is an unfunny joke and vacnet only detects spinners on casual mode after like 40 hours. Don't even get me started on the glorified PR move that they call trusted mode, Manual Map injections still work so it doesnt even stop cheats just glitches my OBS and Discord.

My 2 cents on the community
Theres a good devoted player base, they've all been around awhile, dont play this game if you cant handle rampant racism and unchecked retardation. some people are chill.. Most are braindead. The community is the perfect example of society, just a bunch of insecure ♥♥♥♥♥♥♥♥ who only care about themselves. Don't take what they say seriously. The sane people are actually surprisingly sane if you ever do meet them.

best piece of advice; don't lose yourself in it, remember that like drugs, you should use this game to enhance your life. not escape it

In all seriousness, game is ♥♥♥♥♥♥, lots of bugs, toxic community, abuse of things like overwatch, extremly ♥♥♥♥♥♥ economy. Enjoy filling Gaben's pockets.

BTW, QUICK ANSWER TO WHY VALVE DON'T DO ANYTHING: they don't have to, your dumbass ♥♥♥♥♥♥♥ buys their skins, plays their game, and basically gives them money so as long as they keep earning, they don't give a ♥♥♥♥ about what you have to say.