I honestly believe not much has changed. There have been many many "weird" fetish producers out there to fulfill almost any fantasy. Now people can make it up themself more easily and waste less time and money on actually weird sites. Not to mention less scam risk, less money into porn credit card providers, ... Nothing bad about it, except you make it bad but that's the users choice and always was.
I think consuming sex content is akin to most time-wasting we can do on the internet today, and that'd be my main concern.