no you are wrong. you can post content to a single relay and your content will get posted because you posted it. the only way to notnpost content is to post it to zero relays which is impossible because posting to nothing, isn't posting, it's not posting. in the words of nostr:nprofile1qqsrhuxx8l9ex335q7he0f09aej04zpazpl0ne2cgukyawd24mayt8gprfmhxue69uhkcmmrdd3x77pwve5kzar2v9nzucm0d5hszxmhwden5te0wfjkccte9emk2um5v4exucn5vvhxxmmd9ux73xm6, "good luck" i.e. gfy.