I'll repeat my comment from the other thread - gross.
I really dislike this statement in general, it's either an angle shoot or intimidation attempt. I used to respond with "if
you can put me all-in, then
I can fold your hand....". But now I typically just respond with "so you're all in then?" - I've found this sometimes will get you enough of an unexpected reaction that you can get a read on which angle the opponent is taking.
To me, you're playing with fire when you make ridiculous/misleading statements like this. And sometimes when you play with fire, you get burned. I get that technically this isn't a proper bet (no "raise" or amount noted), but as phrased (and assuming heads up), because he included "all-in" - I'd rule this an all-in and call.
If he got by on the technicality of "I'm gonna..." - replace "put you all-in" with "bet 1000" and see how that sounds....
I haven't found a clear rule that prescribes the "proper" decision on this, but in my house, unless the dealer is quick enough to clarify the intent (I am often dealing and
always do this), I'd point out that "Making statements or taking action that could unfairly influence the course of play, whether or not the offender is involved in the pot" under RROP Poker Etiquette, and it'd be an all-in and a call.
To award this decision to the angle shooter with only an orbit penalty is asking for trouble in the future.