Earlier quoted context omitted.
Completely off-topic but I've this a few times now in different places. I'll come to the end of what I'm reading and there'll be a tl;dr at the frickin' _end_ of it! Isn't it supposed to be right up front so that if I am incredibly lazy and trusting I can just slurp the tl;dr and move on? When placed at the end is its meaning changed to something like "to summarize" or "in summation" ???
This construction {{point}}; {{elaboration}} tl;dr: {{point}} is about as redundant as it gets. For what it's worth, I take that form of "tl;dr" as emphasis, not as a literal tl;dr.
This.
I've been inured to using it in that way as well. I see the criticism above as a valid one though.