It sounds more like they want to compete with either Patreon, OnlyFans or both. Though reddit as it is now is a horrible place to build a community. It's hard to keep bad actors out, but moderation (and the culture surrounding most moderation on reddit) is also completely opaque. So you simultaneously have a problem repelling trolls (participating in trans subreddits essentially guarantees hateful DMs), but you can also shape comments in their entirety to make a place a perfect echo chamber. Entrance fees might actually solve this problem.
This is great, but a lot of people think it will be a Intuit or H&R Block "killer". It won't. People don't pay for the "expert" tax prep, they pay for the hand holding. I have worked for HRB corporate for years and have seen countless people with simple W2's that happily pay $100+ per year just to have an office to go to, to shake a hand and talk to a person about their past year. As long as there are lonely elderly people, these businesses will always be there.
I can totally relate to these tips. I used to do in-home computer service and I advertised on self made signs all around the city. Got a lot of calls but not a lot of conversions. The minute I put "Business Computer Service" on the signs, I got the same amount of calls and nearly every call was converted into an appointment. And now that they had a reliable computer person, they continued to call. I was able to raise my prices by 40%, hire a few employees, get some funding and eventually sell the business. I'll never forget how adding that one word was liked a magic trick.