You still gets points during the warmup round so it still gives the same long-term advantage as any other round. The only difference is you don’t have a monetary incentive to do it.
/end debate on that one
At the end of the round is still up in the air. While it doesn’t really give a benefit, some players will sneak it further and further into the “end” of the round trying to push the envelope. If a team hasn’t won yet, slay them. If they do it to get to a gun they ordinarily would not have been able to get to, slay them the next round.