I find it a very useful feature, but sometimes I click override when I know I should probably be working.
A way to effectively ban myself by removing the override option (by choice) would be effective for those of us worried about YC being a time-sink.
You could log out of your account if it was that important, but it seems like putting another barrier in-place as an annoyance will accomplish the desired effect.
I often find noprocrast does exactly what it's supposed to do and reminds me that I should be working.