I don't think invite only is the solution. I think it's just what you get when your site grows. But maybe you could track how much time user X spend on DN and how active he is and then give him the option to post. So you could just filter the accounts out that just exist to post a spammy article and leave.
I don't think invite only is the solution. I think it's just what you get when your site grows. But maybe you could track how much time user X spend on DN and how active he is and then give him the option to post. So you could just filter the accounts out that just exist to post a spammy article and leave.