[Rant]

I fastroll until someone starts abusing it.

There is one player in my home game who does his best never to show his cards, trying to gain an advantage. I often make him show his cards or muck them.

For other players I will save them the embarrassment of showing everyone that I just owned them by quickly rolling over the nuts.

Like the rest of poker, this is a situational thing. I agree with Tommy that fastrolling should be the default. I stop agreeing when a decent player is trying to slow roll for an edge.