I think nostr:nprofile1qqsyvrp9u6p0mfur9dfdru3d853tx9mdjuhkphxuxgfwmryja7zsvhqpzpmhxue69uhkummnw3ezumt0d5hszythwden5te0dehhxarj9emkjmn99ue6qm68. offers a great solution to this. When a certain amount of people that you follow report a user, then it will not be shown in your feed by default.