That's a little too harsh I think. There are lots of real giveaways out there whose main reason is to promote the website or the associations. I have not myself received anything from them but I know somebody who did.
Maybe you said that because you haven't received anything from giveaways? Just kidding, don't be too difficult with giveaways, I think if your mind is clear enough, you will be able to tell the difference between the fake/ scam giveaways and the real ones.