For a supposedly anonymous site that’s going to be a target from both hackers and companies looking to reveal that data, I’d say it’s not really any better, just delayed. All it takes is someone finding a SQL injection vulnerability on the site to scrape the user database, or a court to rule that they have to turn that data over to a company looking to go after an employee, or even just someone with the right access at the company clicking the wrong link

If you want to be anonymous, the first step is to not give people your name or other PII