Nope, it’s an absolute nightmare. The post basically outlines how you could feasibly exploit data across a majority of the Lemmy network without much effort at all.
With a bit more effort you could also link the Lemmy accounts to the users email, as becoming an admin is as simple as hosting your own instance and getting users to join.
Boom you have a business case of profiling people on Lemmy and selling those profiles to advertisers, stalkers and perverts alike.
I have a habit of using a flashlight to go to the toilet in hotels or unfamiliar places, so I don’t stub my toe or other stupid stuff when doing the nightly toilet sleep walk.
So I grab the flashlight, point it around and notice a glint from the ceiling fan. The ceiling fan didn’t have an IR remote so it didn’t make sense and yup, sure enough it was a little lens that conveniently pointed towards the bed.
Fun thing: We actually signed a waiver that the house uses cameras, since there were a view regular ones on the perimeter for security, which seemed logical. That asshole really tried to play the “but you signed that you’re okay with being filmed” card.