[loves_mangoes]

Ah, fair enough! I'm only trying to describe the state of things today, but certainly those uses of the word are not new

[bombcar]

I remember it being used as a synonym for “obsessed perhaps a bit too much” even in the 90s, probably from the idea that if you had autism you would be amazingly brilliant in some tiny subsection of knowledge, like LEGO manufacturing differences.

[K0balt]

This is also the usage that I understand.