Can you do giveaways on DOTA 2?

No.

They should add Dota2 to the giveaway list. Instead of getting 30 contributor points, you get -30 contributor points.

Everyone has a lot of copies .. :)

of course you can,but the path to giving it away is hidden and dangerous, however, if you get there, you'll be glad that you took the time to find it!

edit: also, how about reading the FAQ first? i know that's hidden as well, but far less dangerous, if you believe me.

You can give them away

here

http://www.reddit.com/r/sharedota2

and here

http://steamcommunity.com/id/dota2bot