You never know who's listening. Even the walls have ears . Many people who make such claims are in fact actually deluded. Others are lying. Yet, as we have seen, advancements in the technologies of surveillance make even some of the most paranoid-sounding of these claims well worth considering.
Schizophrenia is quite a different thing than paranoia.
That the American Psychiatric Association insists on linking the two is, I feel, a blatant attempt to discredit paranoids. Because people that the APA call paranoids are telling the truth about the APA, i.e., that they are evil. After all, history has proved paranoids are not out of touch with reality, only with the official version of reality. Nor does an official diagnosis of schizophrenia guarantee that you are actually schizophrenic, whatever that means. Far from it.