Commenting without the comments
github.com
github.com
This could help clean up a lot of "OH ME TOO LOL" or "first post" posters if they're trying to get around those filters, without the user realizing he's been banned and start retaliating.
A bit of a "12 year old" filter, if you will. :-)
EDIT: Wait, you're not the creator. Forgot this was not a ShowHN thread.
I am however working on a server-side version that is just a simple perl cgi that stores comments in a file named after the users IP address. That way any browser at their location will see their message. Maybe I will put it on github if I spend enough time to do it right.
a) totally "relevant" after being around 4 years
b) has 1000s of github stars and 100+ of forks :)