But the amazing thing is that despite the naive approach, the extortionist was able to collect many millions of $ (more than 4,000 BTC) from thousands of people
Where is the proof that someone actually send total of 4000 Bitcoin for this stupid email?
I also received same sextortion emails several times before and I don't even have camera connected to my computer.
1GYNGZLEUGkkQjHo19dHDnGE87WsAiGLLB
That address that is inactive since 2018, it had total of 14 transaction and it received 0.93 BTC and not 4000 BTC like you say.
It looks to me that OP is trying to promote his own
btctester bitcoin analytics and forensics website with sensational and fake news like this, and that is not a good way for promtion.