Derailing a bit the thread here, apologize in advance.
Maybe I don't remember things correctly but weren't you the business owner of moneypot game when or happener there was a player that was exploiting the game in a way you (or the business owner of it wasn't you) defined "smart"?
I remember it was related to the game latency and that player was using a script that allowed him to cash out before the very istant the game was busting ( so the last available multiplier was revealed ) taking advantage of that latencyand setting the desired multiplier in that moment.
I witnessed him playing and he was warning other players in chat not to follow him on his bets because otherwise they would have gotten hurt.
Maybe I'm confusing a bit things but remember for sure this kind of exploit happened.
Yeah, your recollection is right. There was a full postmortem somewhere in the bustabit thread, but I can't find it right now. But basically the guy found a (subtle!) bug in an unreleased feature (changing the auto-cashout mid bet) which allowed him to cashout just before the game busted. I was extremely fortunate that the person who discovered this bug just wanted to claim a fair bounty and didn't try bankrupt me (which he easily could have).