> it would be illegal for me to run a website which let sex workers anonymously check a particular client’s phone number to see if someone had previously report

> it would be illegal for me to run a website which let sex workers anonymously check a particular client’s phone number to see if someone had previously reported them as violent I always had a business idea that is very similar to this. It would be a good use for decentralized "blockchain based" (aka no mediator). It would be like LinkedIn, but instead of thumbs ups and high fives saying what an awesome boss you are and how your Excel skills are second to none, it would be the truth about working for/with certain individuals/companies. You could even have a spinoff that talks about romantic partners. Who is a known cheater, abuser, etc.