No I didn’t, but you made me curious so I just looked it up.

It’s not a sound I remember hearing anywhere, but I certainly could have and not known what it was at the time so ignored it.

At first I thought this was the Star Trek community and it was about Dax’s previous hosts.

It looks like a code even when not trying to.

The concept for this is called Steganography and that article has several examples, but most would be difficult without tools/references.

The easiest would be stuff like using certain letters of words or word lengths as mentioned in some other comments here.

I’ve often wondered if this is something that could be engineered correctly or is it genuinely a difficult problem to solve with multiple variables (incoming water temps, pressure, etc)

That’s insane that they apparently replace the subject line. Completely irresponsible.

Should also be labeled as AI regardless. (Or ideally disabled, especially after incidents like this)

Just One can also do a lot more than 4 players. If you add additional writing surfaces and erasable markers (or pencils or whatever) it’s pretty much unlimited.

Edit: It has enough for 7 players in the box (at least my copy does)