I think that TL;DR is a great practice for writers, and it doesn't matter how you label it. TL;DR apparently originated on MetaFilter, which I can totally see

I think that TL;DR is a great practice for writers, and it doesn't matter how you label it. TL;DR apparently originated on MetaFilter, which I can totally see happening. The sort of esoteric abbreviation coupled with a semicolon would definitely come from there. However, it started as a response to extremely long & rambling posts. Then, TL;DR became used by writers to capture attention-span-challenged denizens. That being said, TL;DR works pretty well at popping on the page. Being acceptably allcaps, it easily pops out when you're skimming, even if it's in the middle of a paragraph. Also, I notice that if I'm skimming something pretty interesting, and notice a point of a TL;DR statement that I missed, I'm strongly prompted to go back and read it again. Not that "Summary" wouldn't do this, but it's almost more insulting. All of this being said, you there are ways you can avoid the issue altogether. If you just more tersely with short paragraphs and bullet points, you can trick people into actually reading. Or, start out your rambling rant with whatever you were going to put as your TL;DR: people generally read the first sentence. People also read the last thing. Did you skim this comment?