TL;DR

Means Too Long; Didn't read. Controversial to use it. If one is uneducated on it's meaning, it could be taken as a noise of frustration after an especially tedious, angry, and/ or cringy rant.

*insert tedious, angry, and cringy rant possibly delivered by someone who just came im close contact with death but emerged with a BURNING VENGEANCE*

TL;DR
.....
F*** YOOOOOOOU

tl;dr

글이 너무 길어서 안 읽었다는 뜻

Of course, everybody who uses eclipse on windows has hit this age old bug at one point of another - documented here - but for those who aren't familiar, the TL;DR is that you get two taskbar icons for eclipse because the eclipse launcher (eclipse.exe) and the eclipse workspace (JVM) are two separate processes and you can't pin the workspace process.

TL DR

Means 'Too long didn't read'

The paragraph was TL DR