This Tumblr post, by another person who has been researching Aristasia this year (but wasn't a member) is rather illuminating: https://tellurian-in-aristasia.tumblr.com/post/756272310620766208/what-i-used-to-know
There are content warnings for this (you can clearly imagine), and, naturally, for the entire Storms section, as noted on the page.
I have said on this page that I found no evidence of this "physical discipline" fascination in the earliest Madrian writings. Miss Starry on Tumblr has presented me with clippings and scans demonstrating otherwise.