Not quite the same as the OP matches, but similar…?
In the 90s, there was a show on a local° public access TV station where a guy played chess blindfolded against the viewers, who would call in and make one move. The blindfolded player was also strapped to a chair, and the dominatrix hostess would shock him with a cattle prod of her made a mistake, like forgetting where the pieces are. It was quite something. There was also plenty of cheap green-screen type psychedelic effects.
°: can’t remember exactly when I watched this, so it could be Portland or San Jose.
There aren’t any specific widely accepted blindfold chess rules. Based on the level of formality and possibly the time control of the event, it could result in simply, “You can’t do that. Try again,” or a time penalty, or a loss. Blindfold chess is often a casual exhibition, so the rules would be whatever fits the vibe, and generally more on the forgiving side.
In standard (vision-enabled) chess, an illegal move in blitz is an auto-loss, but it is not an auto-loss in longer time formats. The rules offer corrective measures for an accidental illegal move, sometimes even after other moves have been played.
Obvious but interesting enough to state: in blindfold chess, many (most?) illegal moves are essentially unique to that game mode, like moving a non-existent piece, putting two same-color pieces on the same square, or teleporting a piece through another piece (which could happen in regular chess for very new players).
Since I’ve only played blindfolded against less experienced players, the most common mistake I’ve run into is where my opponent had at some point misapplied my stated move, making their board state wrong. I’ve learned to add redundancy, like “dark-squared bishop to d6” to prevent an accidental light-squared bishop to e6 or something.
A friend did 20+ boards blindfold in the 1970s. The six-hour show didn’t wear him out that much, but all the players had to stay around until they lost/won/drew, or until the end. This caused players to leave (and resign) while their position was still playable.
A way of getting around this is for the exhibitor to play (e.g.) five boards, with players being replaced as they lost. The “world records” are almost always based on the all-start-at-the-same-time variation.
I’ve given this some thought and I’d prefer to stay anonymous.
I think there’s a big difference between a message board with a huge number of users, a ‘friend’ site like Facebook and a small Whatsapp group who mostly know each other.
I will say that all my chess posts here are genuine (and my own work - no computers involved )