I believe you can do “zaps” on the Bitcoin subreddit. I haven’t used Reddit in a while but I remember sending around lightning network sats to posts I liked and even getting some in return back in the day.
Reddit joins the value for value creator economy with newly revamped Reddit Gold. Reddit already had Reddit Moons, an Ethereum shitcoin that works in a couple different Subreddits. I wonder if they've heard of Zaps? Probably not.
https://www.redditinc.com/blog/updating-reddit-gold-and-rolling-out-our-new-contributor-program
Discussion
You can do third party Lightning tips, but they're not zaps.