LOL, never happen about posting pending players. Because a bunch of impatiently ridiculous douche bags would spam that person with slander.
I like to wait a bit to play a lot because then I know what i need to shoot to win or place in the top 4. I usually just wait an hour or so until the tourny closes and I can see the scores. Only once since the new format began did I wait until the 10th hour and it was because I fell asleep.
I think this too sometimes, mostly when there's just 1 person left to go and there's still hours until it ends, but it's still not reasonable. Sometimes life gets in the way of online golf. Somebody might have to save their round and should be given sufficient time to come back and finish. Maybe in the future there will more tournys, so that they can have 1 day RGs and RG's where your round must be completed within 2 hours of entering.
Perhaps a 2-3 hour window to finish your round after entering or after the roster is filled isn't such a bad idea.
But bare in mind, theoretically the more frequent you allow people to enter the same RG, the more frequent you'll see the names of the best players stuff the top of the leaderboards, freezing out other competitors from making a decent credit ROI.