Sure, but that was my point. Is there some nice piece of software that will a. create and export a pad for you, b. import someone else's pad, c. allow you to [x

Sure, but that was my point. Is there some nice piece of software that will a. create and export a pad for you, b. import someone else's pad, c. allow you to [xor] encrypt/decrypt files in a standard format that someone else with the same software can encrypt/decrypt? I don't even know if the infrastructure exists. You'd need a file format to identify the pad (md5sum or similar) and offset to wrap the encrypted data, and then some useful mechanisms of annexing off the burned parts of the pad. If you have a network of people, you're going to need more pads, and if the pad is big enough so you don't run into "no more pad left" then that's potentially a lot of storage. TLDR: if a journo can't make easy use of gnupg, a OTP system is going to be well beyond their means.