Everybody can read Hacker News without any registration. A lot of people that read HN know that almost all registrations are used to harvest their personal data

Everybody can read Hacker News without any registration. A lot of people that read HN know that almost all registrations are used to harvest their personal data. Others simply won't use a site that needs too much effort. If you really want to attract users you should offer a free sample so they can decide about using it.