Newbies have visions of easy money. They will buy a domain, find some cheap scripts and hook up with some affiliate programs and then wait for all the money to flow in.
Then months go by and they come back here and post "What is wrong with my site? Nobody is converting! Whaaaa!!
"
Then they read:
1. EVERYONE is pushing porn. The market of porn pushers is way over saturated
2. FREE PORN IS EVERYWHERE. Why pay when you can get it for free.
3. Piratebay is your friend when it comes to pay porn you want. Just about everyone nows about bittorrents and the ease of becoming a pirate is only a few clicks away.
The guy who thinks he can make a pornstar out of his GF/wife is also in dreamland. Same with the girl who thinks she is going to solve her financial problems with Adult Cams. Again, the biz is massively over saturated.