Not just crypto, they were diverting ad revenue from websites to themselves, collecting unsolicited donations for content creators without their consent, suggesting affiliate links in the address bar and installing a paid VPN service without the user’s consent. Don’t forget they had a “bug” in Tor which sent all DNS queries to your ISP instead of routing it through tor and also weak fingerprint protection. Not to mention the political affiliation of the CEO. But it IS open source.