It seems like the majority of the league wants players locked during game time and until waivers are processed. That's fine with me, although beside ahill, no one really gave an explanation why. Really, it should be the same with Sunday 3:05/3:15 and Sunday Night and Monday Night games too (with FCFS right up until game time of all games).
do you need an explantion why? its pretty self explanatory. If players lock and are unable to be freely picked up for sunday and monday games... why should thursday games be any different?
there are several different arguments for why players in the thursday night game should lock at kickoff with the strongest being rules consistency.
i don't actually see any argument for allowing TNF players to be added once their game starts.