Are private citizens, who take over functions normally left to the state, by publishing information, on the Internet, about others from (a) courts not of record ; (b) court documents and (c) state records, 'state actors' that violate the Fourth Amendment?

QUESTION(S) PRESENTED : (1) Are private citizens, who take over functions normally left to the state, by publishing information, on the Internet, about others from (a) courts not of record ; (b) court documents and (c) state records, “state actors” that violate the Fourth Amendment? ; (2) Are private citizens, who publish on the Internet, private information of others, obtained from federal databases and agencies, “state actors” who have violated The Privacy Act?