Is it illegal to give away money to followers?

What if I said I would give 1 ETH to a randomly chosen follower this Friday? 

Screw it, let's do it. I'm gonna give someone 1 ETH on Friday. 

Only rule: Must Recast this post with what you'd do with the ETH

Hey Shane I would be so glad if I won the eth giveaway because I can finally I can use the money to support myself and my family who are really struggling and living paycheck to paycheck for over 8 months now, And I’ll use part of it to repay the loan I took for me and my brother to pay our school fees.