People are really paranoid about their poop. I went through a whole thing two weeks ago and ended putting some of mine under the microscope. It doesn’t really work like that and I had no idea what I was looking for but I legit spent a solid two hours between the sampling and the analysis.

I learned nothing from it and ended up feeling overall dirty, but it seemed really important at the time.

You may be underestimating the number of victims that, if they ever find this out would say, “jokes on them, they’re staring at my shit! Besides, the shit pics aren’t connected to me personally, so I …don’t even give a shit! lol”.

As for the who of your question, lots suffer bowel problems enough to try something free, and many others do it for equally mundane reasons.