Sorry, all these Seforim listed write that one owns his intellectual property and it cannot be copied without permission. Doing so is either Gezel Gamur or akin to Gezel. Where do you get the idea from that it is merely Hasagas Gvul? The Igros Moshe I cited writes explictly “Gezel”!!!
“And your characterization of Rav Elyashev’s position is mistaken”
Nope, yours is. I’ll try to post an exact quote tomorrow.