I think it's worth it if you believe in the project and the reward. For example, I like MyNFT.coms GBM Auction system and I would love to get into Sandbox. The patented bid to earn system MyNFT has introduced is long overdue, rewarding bidders for market making and price discovery. Bid to win an auction or if you lose, leave with more money than when you started bidding
So therefore I participate in the Gleam bounty /giveaway, because the reward is a chance to win a Sandbox Land, but if I don't win I'm still earning social capital with a project I love. Support me and maybe win too if you like here :

https://wn.nr/4As2ck