A program that let people organize every half-life related game. which takes a million years to load. steam also comes with an anti cheat system called VAC, which also sucks.
The most retarded program on Earth. Made specially for us.
When you want to play CS or HL2, Steam would open up all of a sudden and will start "updating" (as they call it) your games. But don't worry, when you turn it off, it starts updating again until you get mad. Then, your actions are unpredictable. Remember: if you're a dial-up person, don't try Steam on your nerves.
The piece of sh!t VALVe designed. Steam started as a VERY buggy program. After Steam deleted all the HL files from your HL folder, people found that Steam is the worst piece of sh!t ever made, but they had to stick with Steam after they had no more HL files. Not only that, Steam downloads upgrades and other crap without notifying you about it at ALL. That means that if someone can hack into the download manager of steam, they can put viruses, spyware and all the other sh!t they want without you knowing it. MILLIONS of people support that and all the other facts why steam is crap.