Gregory's ServerWords belong to their users, but that doesn't mean we shouldn't oppose uses that unnecessarily destroy clarity.
If you tell me something is a "podcast", I'm going to try to play it on what every person agrees is a "podcast player." Nontechnical people don't talk about "RSS protocol" or "walled gardens" but will understand "It is an audio show that is not a podcast, and therefore won't work on your podcast app." That's why the distinction is important to clarity.