I rebuilt the product and we did some local hustling. Surprise surprise, it didn't work and we started to doubt ourselves. We decided to ask for product hunters' opinion.
It turned out unexpectedly well. We got about 600 signups that day and I still remember how we celebrated yelling "sign uuuuup" together with @altanagdgn when a new user signs up.
WebGazer was #1 for most of the day but completed as #2.