Why create a Giveaway ?

That's because people are feeling generous. You get nothing in return (other than a chance to win some sweet game for yourself, too).

Why care about others? Why be generous? Why giveaway leftover bundle games when you have absolutely no use for them?

so they are doing this for nothing ?

why play videogames, it will never give you something back (exept some e-sports, or beta testing)

Whoa whoa wait, people give games to strangers for nothing in return?
The hell is going on here.... this can't be real!

I love all people, that is why I lovelovelove giving away free stuff! Seriously though I have no idea why I do it, because I really do hate everyone that is alive and a human.

You get Contributor Value, which you can use to enter Contributor Only giveaways, and also a good feeling. :3

Why do you even enter the giveaways then?

Didn't someone make a thread almost identical to this the other day? Or last week?

im doing giveaways atm because i am getting some humble bundles, and i give the games away that i don't need

It's that warm fuzzy feeling that you get inside. You might want to try it one day.