I've claimed some of freebies from yobit and why? I can't say it's worth or not, but they are giving it for FREE without asking you anything (you just need to wait it reload to able earn more amount later, just like faucet). So it's your choice to claim it or leave it
actually, if you have a coin that you had left on your wallet i think you can donate it in the free coins by clicking the donate other.
but after all for me the free coins on yobit not worth until now except the ones that they held a few weeks ago which they give around 700 doge/person