TL;DR 是什么意思 [...]

henices

最近经常遇到这个词，  too long; didn't read

( t5 x# ]" n8 Q. k- w5 Shttps://en.oxforddictionaries.com/definition/us/tl%3Bdr
https://en.wiktionary.org/wiki/TLDR
http://www.urbandictionary.com/define.php?term=tl%3Bdr
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https://www.zhihu.com/question/20187408

mhsnkhnpr

As a reply it means that the post was "too long" and the person "didn't read" it. But if it is part of an article it means that this section is short and are for people who don't care to read long texts, you can say that it is a summary of the whole article.