Hmmmmm… I see you are using the British-ified connotation of bore. To be a “frightful bore” about this and that. I don’t think Americans really use the word the same way anymore. Either something is, or is not, boring. But you folks tend to use bore as a stand-in for droning on and on and on about something. To be tedious and repetitive. To say the same thing over and over again. I’m not sure if Americans use the phrase the same way anymore. But I could be wrong.