Para hablantes de español, este video explica la vulnerabilidad de XZutils, a la que hace referencia este meme: https://youtu.be/mTpDmhF4BSw

I don’t know why you say that bitcoin is mostly used to scam people and to purchase illegal goods. I agree that maybe a small fraction of people is using it as a currency. But, in my case, most of the people I know who have bitcoin, just have it as a store of value. Maybe I am lucky and know a lot of those “responsible heroin users” who understand that there will be only 21 million bitcoins, so what makes it valuable is its scarcity, and as long as central banks keep printing money out of thin air, bitcoin demand will grow, at least among those who understand it.

I don’t want to say crypto in general, but Bitcoin in particular was born after the 2008 crisis, as a decentrized form of money, meaning storing value against the inflationary fiat money that the goverments can print in a centralized manner, destroying all your savings. I think any technology that empowers decentralization is positive. Same as fediverse. And in the case of bitcoin, having a decentrized money it’s a really positive tool for freedom to avoid centralizing the power in the governments. But I am curious on knowing why you say that there is no positive uses.