I've always loved writing. To get things out of my system, or to structure my thoughts, even scribbling unreadible tasks on my to-do list so I'd remember them (not by reading, but by remembering what that weird drawing in letter form was supposed to mean). I feel better when I write. Texts, yes, but also just commenting on the works of others.
The rewards are fun to watch. But I doubt I'll ever use them. It's something I show to people I would like to have on the chain, as an extra motivation to join and do some writing on their own (or other content creation) - making $2 on a post is a lot here. Especially when you can turn it into delicious bread, and then get a little cashback on top. But it's still hard to get people used to it.
The physical act of writing something down helps remember too. I have often wondered what effect typing has, as it uses both hands. This might sound better, but when we write, we only write with our dominant hand, which means it accesses a certain part of our brain. Is writing on a keyboard like being split personality?
In lots of places it is significant. It always make me question why some don't put in more effort, and instead look to scam.
We're taught to be get the best result for the least effort - the era of efficiency. Why work on a post for 2 hours and make 3$, if you can just throw out something "whatever" in 30min and make $1.50 through auto votes?
Maybe it stimulates both sides of the brain at the same time? I write incredibly fast on the keyboard, according to people who see me write on it. I think my musical background helps with that, too, playing the piano early on and then other instruments where left and right are coordinated, but do different movements at the same time.