If that metagaming is in the purpose of helping the table have a good time (like understanding how a system shares spotlight time, and using it to share spotlight), then I feel no need to stop it.
I strongly prefer that players not use, say, monster stat information without first establishing the character knows it first. But I rarely need to enforce that - my players seek to establish it themselves before I have to act on that.
So how did you vote?
I voted "False" since I encourage the "good" metagaming and discourage the "bad" metagaming. I assume everyone else does the same, in practice, except we all disagree on what constitutes metagaming in the first place.
I mean, if a player character has died, and the player needs to have a new character join the group, the group should do lots of due diligence, potentially interview other candidates and maybe ultimately decline to put their life in this stranger's hands, turning down the offer to join the party. (Part of me now wants to ask the player to roll up 5 new characters, and let the
other players decide which one they get to play ...)
If a player new to the game forgets about one of his class abilities, and one of the other player characters may well die as a result, I have no problem with one of the other players suggesting (for example) that the new player who "has used his last healing spell" spontaneously convert one of their other spells into a healing spell - even if the PC has never seen a cleric do that before.
I also don't want to get into minutiae like "has your PC met trolls before, or heard stories/legends about trolls, or any other regenerating creatures, or is inventive/smart enough to wonder whether burning might solve the problem" so if you think your PC will use fire at this point, then I'm not going to object.
On the other hand, if you act on knowledge your character could not possibly have ("We all stop what we were doing and head over to visit Dave at the chapel, timing our arrival to coincide with the assassination attempt the DM just mentioned") then I'm not going to "strive to curb" it. I'm going to flat out disallow it.