BayesOrBust

Fair enough. One could always make the argument of "legal=/=good" as many do with piracy. But then again, that doesn't exactly play well for one trying to make a business!

What is your opinion on libgen?

I think the popularity has stemmed from the same movement as scihub (as in, if anything, it might be used moreso by professors rather than students). The access code problem is still unavoidable and probably the biggest caveat to overcome for any approach to this, legal or illegal.

On another note, It would be interesting to see what majors/degrees tend to require more books with access codes as I seldom experienced it with math/statistics but saw others dealing with them frequently during my undergrad.