I am surprised to see posters defending the sports book. Do you believe in your heart that they are in an honest business?
That's a loaded question and the wrong one to ask.
Better to ask "are they honest business people" and by and large the big houses will be, even if they fukkin freeroll the guy, which I do not like.
I'm far more of a "you book it, you pay it" kind of guy, I'm old school, but I understand how we are subject to obvious errors and must adapt.
As far as the guy intentionally circumventing the rules, well that's pretty well established in the gambling community. It's a risky thing to do.