I think the casino industry’s ‘sales tactic’ of offering a deposit bonus with a ‘hidden’ playthru term is one that will eventually backfire on them.
The ‘bonus’ seems like a good idea in the beginning until you figure out how the bonus affects your play and payout.
I think they should operate more like the land based casinos where you don’t expect to get a ‘bonus’ or be required to keep your money in the machine longer than you feel comfortable with.