I think many people are doing what you do, except those who aren't. We cannot assume any of it is abuse or bad, most of it probably is just fine or good. Giving 4% extra curation is a nice gesture. I like the diversity all these options allow for.
I want to try using rewarding.app, especially for moly posts that are lower effort (things like ask hive where others put in a lot of effort, too~ or single photo posts that take less than 30 minutes to put together).