I've only heard it in a gambling context which is why I was confused. I was briefly on a UK gambling platform and they referred to themselves as punters.
"interesting, so when a fellow is taken up by the cops, and he says "thers no punt, im telling you truth", is that unfamiliar?"
Yes it is unfamiliar - it is unlikely that anyone in the UK has accidentally said that.
"i have a lot of different nationalities partaking of my wilderness lodge, and a lot of the younger english ones use punt/play/burn/scam as equivalent."
Given you have a dislike of capitals, I'll hazard a guess at your age (but not tell you). Kids here (UK) don't use words like that, says Granddad! I get a capital G because I say so.
If I had to guess, I've probably replied to a shit AI sigh
to wit: scammer, scheister, player.