In https://hg.python.org/tracker/python-dev/rev/83477f735132

there is a patch for registration that requires a delay of at least 4
seconds between the time the form was generated and the time
the form was returned.

This is designed to catch fill-in attempts by bots.

Do we want to adopt this patch? Perhaps setting the delay time as a
config file parameter?

This seems to have worked well for them based on:
http://psf.upfronthosting.co.za/roundup/meta/issue105
(old comments but...)