massively.
we would lose access to Twitter for a start. tumblr also has adult content and no age verification. All clipsites that have a clip preview before you sign in, so thats all of them that i know. Cam sites that allow nudity in free chat so mfc chaturbate etc etc
If you are not british then effects will be less, but if you have british customers and traffic then you can pretty much wave goodbye to them.
Yes we can get vpns, but many uk girls work on adultwork, if they detect you have a vpn they close your account and keep your money, there is no discussing it, account closed and goodbye. The article i read on Forbes also mentions they will get credit card providers on side, so if a guy cant pay for the services then a vpn isnt going to help me. Yes i work on American sites but the majority of my customers are still British, partly because of the hours I work.
Consenting adults are being censored to 'save the children' while i do not believe kids should have access to porn, i also do not believe that censoring adults is safe or a good idea. Its fucking scary to be honest
http://www.forbes.com/sites/emmawoollacott/2016/11/29/uk-porn-database-approved-by-mps/#777d626f116b