I noticed that a recent teaching faculty candidate's LORs from an institution outside the US all had not-so-short and shamelessly hagiographic "short bios" appended onto the end. One went on for a whole page, making me wonder who they were recommending, the candidate or themselves.
I've always taken the attitude when I've written an LOR that the reader doesn't know or care who I am, they care about the candidate, my relationship to the candidate, and the up-close observations and evidence I'm able to offer in support of my recommendation, so they can judge for themselves whether this is really a top candidate. (In the unlikely event they do want to know about me, I give them a link to my faculty page.)
So, this was the first time I've seen a short bio at the end of an LOR. Is this the new thing or something that's been going on forever that I've just never noticed?