I've had leagues where guys in consolation brackets have made head-to-head bets on their matchup and so they made moves to help their team, so I try not to judge blindly on it. That said I tend to not make transactions if I'm eliminated from a chance to win a league prize.
So know ahead of time that when I lose this week I will still be active next week trying to nail down that third place prize
It looks like our guy in this league didn't make the moves until this morning post waivers, so in that respect we all had an opportunity to act first. Understanding there are legitimate reasons for a contender to hold off on a move until end of week (like waiting for an injured player to be eligible for IR) that could've been impacted.