A simple anti-spam system for
[question2answer](https://www.question2answer.org/qa/), using [the
stopforumspam API](https://www.stopforumspam.com/usage) and
[ufw](https://launchpad.net/ufw).

To deploy:

* modify the configuration variables in the scripts
* copy the scripts to /usr/local/bin
* add a line like `0 0 * * * /usr/local/bin/q2a_usercheck.sh` to root's
  crontab. Alternatively, you can add `q2a_usercheck.sh` to /etc/cron.daily/
  if it exists (for example, on debian).

TODO:
* add support for pf
* add support for iptables