To be clear, my working assumption is that there is a nefarious reason, it’s just not immediately obvious to me what it is.
As someone else mentioned though, you could be a bit fucked if your eyeball data is used to identity fraud you, so perhaps not the best idea for a security standpoint
The reddit api blocking 3rd party apps pushed a whole bunch of people onto lemmy, and lemmy is very big on FOSS and Linux so it’s been a gateway of sorts