You might want to talk to the nostr.land folks because I don't know what their different addresses do, but it feels weird to have hist, aggr and nostr.land in public outbox and inbox. On the outbox: If they are coming from the same pool of nothes, each of your follows is connecting to the 3 relays and getting duplicate data all the time. On the inbox: If all of them send data to the same pool, then only one is needed to receive posts citing you form your follows.