Pure marketing and with the aim of obtaining more customers and financial return.

Imagine if Satoshi in the Genesis block had said "currency created to avoid taxes". Do you think Bitcoin had reached this day without major complications? Logically not.

The problem is when people exaggerate how far they can go, and end up exposing themselves too much.

This is reminiscent of what happened with torrents and PirateBay. Why was this the most followed torrent site to date? Because it was what was most exposed and clearly shown to the public as a way to obtain paid content for free. Today, torrent sites continue to exist, but as they do not expose themselves to that level, they manage to go unnoticed. And with constant small adjustments, they manage to avoid the actions of the authorities. They are not free from being caught, but it ends up being different.