If I buy a game on Steam can I sell it to you? I remember when you could just buy a game and install it, now I need another program? Why?

You don't own the games. You can't trade them. If they get removed from the platform you are SOL. Also it affected physical games as well. Why did I have to install Steam (that was green steam btw) to play Empire Total War?

I'll stick to torrenting, besides a game is like 10% of my salary. Nope.

Why pay for stuff if I can have it for free? Steam was a terrible thing for gaming.