Actually its easy to do deposit part because most payment processors drop many casinos due to charge backs when people lose, so they usually have below average payment processors thus = not as advanced protection methods. However issue revolves around getting money out, you will make deposit without issues on many sites such as 888casino for example, but as soon as you request withdrawal you will have to go through verifications which sometimes take up to a month! And by that time "victim" will notice someone deposited money on the casino and have his bank mark it as fraud and charge it back and everything you have in your account will be liquidated by the casino. Also casino meticulously tracks your geo-data and have very strong proxy/vpn/etc detection and if your computer geo data doesn't add up they can instantly disable/freeze your account (its actually in TOS of all legit casinos that use of any kind of masking software is prohibited same as 2x accounts etc). Now there are some casinos that do very quick very quick cashouts e.i Pokerstars, bitstarz etc but again they either have very strong protection/in terms of gdata matching/if anything looks a tad bit wrong = account freeze until its resolved which can be lengthy, and they have good pps. They are very well aware of tricks and methods, for example when you turn on Pokerstars software its basically spying on all processes on your pc.
Not saying it cannot be done, it can but its extremely complex and is not worth it because casinos always win and you will not be making money there long term ever, there are far easier ways e.i electronics/ebay stuff etc, buy -> to drop -> you -> sell that crap on craiglist/kijiji etc -> deposit on casino - gamble away "legitimately" otherwise you are just playing with "play money" that will be taken away and you won't be able to cash. Not worth the hassle, there are some shady crap casinos on which its easier but often they refuse to pay out for long periods of time in hopes you will go play their games and lose it all or ban you altogether forcing you to charge back your initial deposit anyway...
