That's another pattern I really dislike, and deliberately avoid. I don't want to use my content as a bargaining chip to collect emails or what-have-you. I have that luxury because my topic is easily monetised. Most content creators don't.

In general, the internet got incredibly annoying, but I can understand why. Part of it is because we feel entitled to free content. There are few business models that allow people to be rewarded for their work while still offering a product for free. It usually involves selling something the user's data or attention.