Planning Poker Silent Voting Benefits
Is simultaneous card reveal really necessary or just ceremony? We've been doing round-robin reveals (each person says their estimate out loud) and it seems fine.
Simultaneous reveal is THE POINT of planning poker. Round-robin creates massive anchoring bias - first person says "5", everyone after gravitates toward it. Simultaneous reveals force independent thinking.
We tested both: round-robin had 80% of estimates within ±1 of first estimate. Simultaneous had true variance. You're doing "planning" but not "poker" without the reveal.
The silence before reveal is when real thinking happens. No talking allowed until everyone's card is face-up. This prevents loud voices from dominating and juniors from self-censoring. Silent voting = democratic voting.
We added anonymous voting using online tool. Even MORE effective than physical cards because nobody sees body language or hesitation. Pure estimates, no social pressure. Variance increased 40% - found way more edge cases.
Exception: if team is truly mature and psychologically safe, round-robin is fine. But most teams THINK they're mature when they're not. Simultaneous reveal is the safety net. Don't remove it unless you're certain anchoring isn't happening.