Pretty sure its not his strategy. Its also not the sites fault. Basically that's why its called gambling and usually you lose more than you win. Hence many just do it for fun.
True. Otherwise, we'd have called it strategy game instead of gambling.
You are wrong. For gambling you need luck but it can help if you got a good strategy. For example in roulette if you always play red and black you can only lose. Hence bad strategy ;-)
Yes and hence why its a wrong term "Strategy" to use in anytype of gambling.
I think if you were playing a multiplayer game like Counterstrike, then yes you could have your own stragety and it would most likely work and there is no house edge except the skills of the other players.
In gambling it doesn't work like that. You have a house edge and in the long run the house will always win.