Great! Bookmarking this. Two points of suggestion though.

1. The antispam filter is a bit confusing. Took me a while to understand that it expects me to input tag number three in the field.

2. After submitting a link, I received no feedback and at this point, I'm not sure whether it's pending approval or if I did something wrong.

Edit: Ok, so now the submitted link showed up. But not with my Twitter profile. Not that I care, but that's another confusing thing in my view.