The first BTC usage I remember (before hearing that it was also used to buy drugs) being talked about was poker players using it to do "person to person" transfer between poker sites. Someone had money on PokerStars and you didn't but wanted some immediately. That person would send you $100 on PokerStars (using a "player to player" transfer) and you'd sent that person 200 BTC (back when BTC was at 50 cents). This was kinda common on poker forums between regulars (sadly I was too dumb to realize the value back then).

Sure it was gambling but it was neither black market nor money laundering.

P.S: an estimated 3% to 5% of the world's GDP is linked to criminal activities. There are hundreds of politicians in the Pandora papers. Money laundering predates cryptocurrencies by a very long time and it's a problem on a whole different scale.

What do you mean by "finally"? It always was one the main use cases, doing p2p value transactions.

Or maybe you just haven’t been paying attention? What about the Pineapple fund, The Giving Block and Gitcoin grants just to name few?