I did not cheat in school. I wanted to prove things to myself and to learn. However the basic premise of opposition to cheating here is incorrect:

"habitual plagiarism ... can have very serious consequences in their professional life"

This is something academics believe because it justifies their policies, but it isn't true, at least in entrepreneurship. Those who can "cheat" without violating the trust of those who matter or facing legal consequences are those who succeed. Those who play by all the rules bitch on HN about "stolen ideas" and cutthroat business practices instead of synthesizing ideas and looking for unfair advantages.

Cheat if it suits you, learn what you want to learn, get the credentials you need, cover your ass, and build the life you want. Life is not a your grade, but neither is it the opinion of a professor over what you should be doing with your time - copying or writing.