Well it depends what you mean by “good money”?
I’ve been on a bit of a writing bender lately (I had to stop writing for two months so stocked up a lot of ideas) so my output is way up, but typically I’ll publish once or twice a week, and I generally make £100ish a month.
If you’re thinking about people making £1,000s per month, I don’t know who that is, maybe your Jessica Wildfires etc, but regardless of how often they publish, their content is usually high quality. It’s not to my taste, but it’s well written.
I refuse to believe anyone is in triple figures for posting unutterable shit, regardless of how often they post it.