You cannot compare those things like that. Not being willing to make all your contributions to a site with the same account or maybe even to have that informati

You cannot compare those things like that. Not being willing to make all your contributions to a site with the same account or maybe even to have that information displayed to the public has nothing to do with laziness. It can be a matter of privacy or security. As a user I myself see no benefit (i don't even know the password of this HN account).