Also thankful for Stacker.news.

While Reddit upvotes and Twitter retweets can help to share good content, Reddit awards and Twitter likes don't have any real value. It feels better to send someone 100 sats than to send a free Reddit award, because the sats can be spent on real products at any Bitcoin-friendly merchant via an open network.

Also Stacker's UI is easier and more streamlined than sending a manual tip or using a tip bot (one click vs. "scan QR/copy address, open external wallet, choose amount, send").

These Lightning tips also help to create a circular economy (e.g. someone receives a tip, then tips someone else's post or saves their tips to buy a product) and it could be many people's first experiences with earning and spending KYC-free Bitcoin.