It's not a plugin at this time, just a script using Q2A functions qa_* I'm learning about.
I noticed that qa_ function are ready to make plugins, because when errors occurs, qa_ functions a generating some HTML output, and I have to understand this.
I noticed that with a massive (18.000+) user insert, I had some strange values in phpMyAdmin for the IP adresses which are stored in binary format. No problem to display them in Q2A but strange characters in phpMyAdmin... ?
I'll answer you in PM but it's not ready to develop a pro-plugin it's just do-it-yourself at the moment. :o)
I think I'll have users and questions scripts ready for next monday, I'll make a little doc for using it and you and other will can test them but with beta-test databases !