I have always used a pay phone for my posts, I call the FR switchboard or the answering service depending on the time of day or night, and they copy down what I say and enter it as a post.
They could trace the pay phone location to within a few blocks, but they’ll never take my freedom (thank you Mel Gibson).
I hate the FR switchboard. The welcoming ad is 15 seconds or so, and you forget half your rant!