tl;dr (abbreviation for too long; didn't read) is an internet slang commonly used in discussion forums as a shorthand response to previous posts that are deemed unnecessarily long and extensive. Due to its indiscriminate usage by many, tl;dr is frequently considered as spam or meaningless replies by both those unaware of the term and those who are familiar with the meaning.
This wonderful abbreviation crept back into my life this weekend after receving a couple of eNewsletters from well-meaning organizations.
I imagine my email inbox is similar to yours ... it's not like there's only ONE piece of mail there needing your attention. And when these huge email pieces arrive, I just let out a nice "sigh."
So you emailers out there! Make sure it's brief, to the point, easy to scan, and has clear, concise language that makes it simple to read and understand quickly.
Create an path for the eye to follow with bold fonts, links, and bullet points to help readers skim; use colorful language; and communicate the offer with simple text, not fancy jargon.