If it's fixed, care to describe what the bug was if it was interesting?
When you visited a profile, there was a "edit" button so that you could just change email and password of every user. The kind of bug my grandma would find just by clicking around.
It's a side project (and given the setup doomed to fail anyway). Super big (US) IT-companies struggel with how to being profitable, whilest IT is capital/work intensive (to avoid these embarassing bugs).
There is a long-tail, but it's not for you.
do you know lobste.rs? Have you considered using it, it seems quite mature, can be white labeled and also is an rails app.