Is this one of the reason why a long running and trusted bitcoin mixing service bitmixer stopped their operation without any prior notice. An anoymous betting platform like directbet also closed their door. Looks like low kyc or anything around bitcoin without kyc is getting threatend by authorities for possible involvement in money laundering.
Bitmixer didn't voluntarily stop their operation, their domain was actually seized by authorities meaning they had already been under investigation for a while... I am thinking you meant Bitblender.io who suddenly shutdown business at around the same period of time.Also, most of the popular exchange hacks happened in the second half of the 2019. The most notable being the binance hack where the said hacked bitcoins ended up being bombarded into chipmixer