Speaking as a caving hobbyist, I think it's rather stupid. Yes you can tweet about your ideas but that doesn't make you actually helped because there's no sign of you being a speleology specialist or any other expertises of wilderness rescue. Those are prior requirements to differ you from a normal guy in the web. Here's a proper rescue case [0], althought there's no cave diving involved.

[0]: https://en.wikipedia.org/wiki/Riesending_cave_rescue