Thats the thing, mga will side with casinos as long as its in their T&C. So if they put a term "you agree how you cant cahout more than $1" and hide it somewhere deep in their T&C unsuspecting players (basically anyone who doesnt read through all pages of T&C) can and will have their winnings capped to $1.
As for max bet limits, its definitely possible. Old Casinoluck and Wildlsot sites had max bet restriction you could set for your account, and i remember at one point i had it set at $1 and it was working just fine as i couldnt bet more than $1 per spin. I think slotsmillion added something like that lately, where you cant bet more than max bet allowed during bonus play ($5?) and VS has had it for ages.
So its not that its impossible, it probably requires casinos to spend some money while returns on that investment not only would be minimal, but would instead make them lose money because they wouldnt be able to confiscate winnings when max bonus bet rule was breached so its no wonder only few casinos have it.
I really hope how one day gaming regulations will be a bit more about protecting players because right now there is nothing stopping casinos from inventing whatever bonus rule they want and players always have to comply with it, regardless of how ridiculous it is.
Im sure idea behind max bet during bonus play was to protect casinos from kamikaze players hitting huge and walking away, but that stopped being its main function ages ago. In reality now its there to catch unsuspecting players and that has been going on for years. And its just one of traps players have to avoid when playing with a bonus.
Basically casinos are given a free ride and one can just hope one day it becomes much better regulated than it is now.
Casinos offering bonuses to players from bonus restricted countries, automatic bonuses on skrill deposits while skill is on no bonus list, winnings confiscated because of one losing $5,2 bet with $5 max rule.
Ive seen wnnings taken away because player self excluded himself from one of 400 casinos that share same license, even if your regular player has no idea which casinos share license, and most of the time its hidden deep beneath 300 pages of T&C and you still have to google it to find said connection. And yet casinos are more than happy to let those players deposit and play until they win at which point self exclusion becomes a problem and casinos suddenly want to cooperate with regulation comitee and are worried about problem gamblers safety.
Tools to prevent every single thing i mentioned are there and yet in every single case casinos end up as clear winner, simply because regulations are still on par with wild wild west era
Basically only rules casinos have to follow is to have working slots. Everything else is up to them, including inventing new ways to stop players from winning.
end rant
also this has nothing to do with panda though, well most of it anyways (bar the max bet limit), as i was talking about online casinos state in general.