As far as I know you can't, but you could have a trigger that if someone pauses the game they unpause it then pause it again so their pauses run out or something like that.
Yes, in multiplayer game, each person can only pause the game 3 times. If you can find a way to force all players to pause, and unpause, the game 3 times each in the beginning of the game, that should prevent any other pauses.
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.
I'm on a page about incorrect corrections, and spent the better part of like two hours trying to get someone to understand that -5^2 = -25, not 25, and then that post had comments get reposted because that group is self sustaining, and that person was in turn trying to explain what I just explained to them. And I'm taking that as a victory