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

If I win, I would hodl this $ETH to $1,500 and eventually ride it to Valhalla. It may take months (or likely years), but that’s conviction for you!  💎 🙌🏻

Navigating the world of finance by day, pondering its flaws by night. ETH Maxi

These diamond hands were forged over 8 years. Too bullish (or maybe too dumb?) to sell!