Launched in Late 2016, OnlyFans Will Reach $2B in Revenue for 2020

"OnlyFans numbers are huge: 85m+ users, 1m+ creators, $2B in 2020 revenue."

"This year, the subscription-based social media service will earn $300 million in profits before accounting for expenses like income taxes, amortization"

I am super curious how this platform became so popular. If you ever had the chance to check the platform, it's not really user-friendly, it's quite slow and a lot of users complain about multiple bugs. From my research, it seems the number of employees is extremely small

I also tried to find how many people are working at this company and seems the team is pretty small (less than 15 persons) and it seems they don't have their own technical team.

What I am really curious about is what was the strategy to get more than 1 millions creators in less than 4 years?