Ragu Spaghettisauce

You get called a lot if you are not pushing all-in before anyone even limps - if you push in with limpers, you still get called, but I wouldn't call it "a lot" (still more than I would expect - maybe 10%?).
But if you are in late position and do it, you get called a ton, esp if someone raised before you.

I've been getting called with the appropriate expectations as to what you would get called at - as to the win rate with it, I haven't played enough hands yet to see if it is sustaining what it should - I would assume so though.

For example, being in late position (say CO) with AA and 20BB, it is folded to a middle position guy who bets the pot, and it is folded to me and I flat call.
The flop comes 445, he bets the pot, and I push all-in - he calls and turns over 66. Then a 6 comes on the turn.
I saw WAY more of this than I would normally expect, so I would attribute that to variance (I would not at all have been surprised had he turned over 67, esp if it were suited and there were a flush draw on the board - but the 66 did surprise me that I got a call out of it - or if he had been the one to push all in, rather than call mine - but regardless, someone calling with that sort of thing and then sucking out, good times).
(I would argue against this same strategy if I were not short stacked)

Granted, that is not an all-in pf - but that's the sort of thing you see - if you end up all-in pf, it would be a similar scenario as the above, but with AKs or with KK and someone else calls between the initial and me, meaning the pot is large enough where I either fold or end up all in now, as I certainly will on the flop.
With 40BB, I would want to see the flop and maybe fold, but with 20BB or less, I'm leaning towards just getting it all in if I think I can get called with my good hand.
Granted, KK is not as strong against two people - but if the initial raise and the call are both full+ stacks, then at least one of them is a pretty good chance to fold to the all-in, and/or at least one of them is not likely to have a superior hand.

I did this mostly to gather stats on this type of play, as I am familiar with it, but not having done it myself, to see how people react to it.

Where all of this starts to be useful is when you have played against them enough to know their ranges - so you can say that in that position, when they raised, their range was A-Z, and against A-Z, my hand all-in right now will get them to fold X% of the time, and the Y% of the time that they call, I will win M% - and then working out the +EV times out of that.

I have no desire to do short stack play myself, I find it tedious. But a friend is looking into trying to clear bonuses, and so I was telling him various ways to do it, and then we discussed a bot I had written for limit back in the day - so I was doing some mental notation of how I would do it these days.