This studio is locked.
Panel 1
Nothing drawn yet.
A strip is what happens when someone comments a word: you whisper back, they answer, the story moves on. Nobody gets a message they did not ask for.
Read it out loud
This builds the JSON Meta would send, signs it, and runs it through the real webhook code. A practice run sends nothing, and it never counts against anyone.
The back page
No usernames, comment text or account IDs are kept in this history. People are stored as a keyed hash, and only for as long as the retention setting says.