The "adult industry" is not so easy to define. I wonder if those figures include sex toys, for example?
I took a look at one of the sources given :
https://www.360iresearch.com/library...-entertainment
I wouldn't be surprised if that was written by AI.
I remember when I was researching 3D TVs at the height of the fad when the first Avatar movie came out. There were countless reports like this stating that the 3DTV market would have a CAGR in the double digits for years to come.
I'd bet that the average poster on this forum has a more knowledgeable estimate of how much the adult industry is worth than the people or AIs behind these reports.
I find it hard to believe that it's worth 100 billion or more today. You'd expect if that was the case that affiliates would be making well over 1 billion, and if that was the case, this place woud be a little more lively, as well as having rival adult webmaster forums. Anti-porn campaigners like to massively inflate the estimated worth of the industry.
Furthermore, NOBODY can estimate what the adult industry will be worth in another 5 or 10 years. This isn't like predicting 2020 from 2015. Two things are happening that are bigger even than torrents and tube sites - a global momentum for age verification and ever tighter regulation, and photorealistic AI porn videos tailored to the viewer's personal tastes at the touch of a button or a voice prompt.
The adult industry could be worth a trillion dollars in another decade, or we could all be in prison, lol.