of course not. The market is ever expanding, the offer is expanding as well, you have 1000 new products a day, you have tens of millions people specifically looking for that product, you have millions of products and services you can't download from a torrent.... really, you can't even compare, simple logic tells you that mainstream is not 10x but 1000x easier than adult.
While in adult is easier to get traffic, conversion rate for that traffic is ridiculous, just yesterday I saw a program bragging how well the convert with a rate of 1:2500 or something like that and I was like WTF! With a very high CTR of 10%, you need 25000 uniques to make a sale and get $30. 25000 uniques in mainstream probably amount to several thousand dollars.
Of course, nothing is like the old days, you can't start a mainstream site and make money in a few days as we did in adult. Plus, while adult is full of cheaters and scammers, its own restricted amount of people and companies served as some kind of safe net. Thus, most companies tried to play legit for as long as possible since they knew they would be shooting their own feet since we know each other. In mainstream, the amount of scammers is proportional to the difference between mainstream and adult markets, so good luck with that
