Has anyone got banned for winning to much in Sierra Madre casino? I've won enough to get Complementary Voucher but wanted to finish the Old Man so haven't played more.

i did, with my luck of 10 playing blackjack it only took maybe 10 minutes.

the limit is 10000

Is it an acievment? And who comps you and kicks you out?

I would like to know the same thing. and also do the casino mods that let you get unbanned from casinos work for the Sierra Madre?

I would also like to know the answer. A bit off topic, I want to get the trophy "The Courier Who Broke the Bank", does killing everyone in a casino count as "breaking the bank"?

"Is it an acievment? And who comps you and kicks you out? "
nope, nothing. you get comped and kicked by messages. gotta go to the cashier holo to get your comps.

"I would like to know the same thing. and also do the casino mods that let you get unbanned from casinos work for the Sierra Madre?"
no idea

"I would also like to know the answer. A bit off topic, I want to get the trophy 'The Courier Who Broke the Bank', does killing everyone in a casino count as 'breaking the bank'?"
nope, gotta get jackpot

Yes!

i got banned from the casino, it just kicks you off the table or machine your playing on with a message in the upper left corner saying you've been banned. it worth hitting max so then you can bring back so much prewar money that ended up giving me around 100,000 caps

There's indeed no casino as rewarding as the Sierra Madre.. That pre-war money is the real treasure if you ask me. The Complimentary Voucher spawns every (3 ?) day (s) in the small safe in the bunker and is pretty handy for .308 rounds. (you can only use Complimentary Voucher if you won 7500 chips)