I can still jump onto any valve server on plr_hightower and get a 20 player killstreak with my market gardener only lole>>10081842
Because the mechanics are incredibly deep and complex. People of massively different skill levels play the game and you can, or well I can, instantaneously see who the best player is on the server just based on movement. I've spent thousands of hours in that game just shidding and fugging around and I'm still not even close to top tier, and even when I was at my peak I'd get occasionally stomped by some giga nigger that played scrims with teams or competed.
Every aspect of the game can be sharpened to such a crazy extent that if you're the best person on the server it feels like you've got god mode but if you're playing against the best player on the server it's like the exact opposite sometimes.
It's an amazing first person shooter and I've never experienced a game like it since.