You have to pay for the messageboards that are actually useful and already have your question like Chegg.

A pittance, compared to what you were paying to attend the courses themselves.

And its quality today is way better than you think. You can just take a photo of homework and it’d give you the right answers 90% of the time and with explanations.

For freshman engineering problems, maybe. Even then, the longer and more complicated the problem, the more the success rate drops off. It’s not much of a cheat when it only gets you the easy answers. Those aren’t the questions that eat up all your time.