I built two working, bug free social sites and yet nobody cares about them. At the end of the day someone else comes with a vaporware manifesto and takes the discussion away from actual products.
"If I delete the spam accounts, they come back. It’s an automated script."
Why not consider users who invited spammers as part of the problem and delete them too? The level of recursion would be the largest hurdle
The bio can be found by clicking peoples username.
From the bio you can also navigate to their comment history and also see what stories they have submitted.
They probably think that users like to have to hunt for the features of the site.