My main gripe with this is that if you select the option that does not filter the internet then most likely your account details are going into a list. That list WILL then be used for other things.
Lets just say for example HLP accidentally gets put on the block list (which will most likely be confidential with practically no way to get removed from). Well thats no problem because I'l have filtering turned off. Now a major sexual child abuse incident occurs in my local area and the police are looking for suspects, "I know, lets get those lists the ISPs have of all accounts with filters turned off and see who is in the local area oh and while we are at it lets get some search warrants made up just to be safe...". Better hide those Strike witches complete collections eh?
The filtering will just break the internet, if places like Youtube and Facebook aren't blocked by the filters initially, a few well timed hardecoredesguisedaskiddiesstuff invasions will soon sort that. Or even worse, Site A dosn't like Site B so arranges to get it flooded with inappropriate content and then reports it. Site B getd blocked without parole and dies (exaggeration I know.
The final biscuit will be when people are unable to search for good tourist activities in S****horpe and Penistone... (I should have expected the first one to fall the the forum's built in word censor

)