This is flippin' excellent!! 
(Would you mind adding a CW to this post so that I can boost it?
)
...you are 100% correct & I'm completely wrong.
I was totally certain that a CW would hide both the images & text in a post but apparently that's not at all the case!
I apologize for any confusion or frustration my misconception caused!
Thanks for your interest in trying out Elk, our work-in-progress Mastodon web client!
Expect some bugs and missing features here and there. we are working hard on the development and improving it over time.
Elk is Open Source. If you'd like to help with testing, giving feedback, or contributing, reach out to us on GitHub and get involved.
To boost development, you can sponsor the Team through GitHub Sponsors. We hope you enjoy Elk!
(on hiatus)