Wow. Threaten a fellow passenger with violence because they reclined their seat?

And then lie to the flight attendant by denying that you made the threat?

Threatening fellow passengers with violence isn't a simple matter of breaking the rules (FARs). It's a criminal act.

CABNcrew: While I can respect your personal opinion about the safest time to recline one's seat, dontcha think the FARs would require that seats stay upright until 10k feet if there was any realistic added danger posed by reclining them at wheels-up instead of waiting until 10k feet?

I'm certain I'll regret posing this question, but here goes anyway: When was the last time a commercial jet aircraft made an "unscheduled landing" (crash) in the US immediately after take-off (or any time prior to 10k feet) where early seat recline made any difference to the survival rate of the passengers?

Let's be realistic. Plane falls back to earth without any notice to pax or FAs right after takeoff from any significant altitude (let's say, more than 500 feet): everyone dies in the resulting fireball.

Different scenario: Plane circles back to runway and makes emergency landing. Everyone lives. What does everyone have an opportunity to do in the minute or three it takes to circle around to land? Put their seatbacks upright before landing.

You might be able to envision a scenario in which the pax and FAs get no notice of an unplanned landing immediately following takeoff that doesn't end like flights 191 or 587. And maybe it could happen. But it's probably very unlikely. So unlikely, in fact, that even the nanny-state FAA doesn't think it's likely enough so as to require that pax keep their seatbacks upright from takeoff to 10k feet.

So here's the simplistic analysis by someone who reclines their seat as the gear are pulled: Either the flight continues uneventfully or we have an unplanned emergency landing. If that landing occurs without any notice to FAs or the pax, we all die, and it matters not whether my seat is reclined or upright. If that landing occurs following notice to the FAs and pax, I'll have ample opportunity to un-recline my seat. And maybe the FAA has formed a similar conclusion.