I’m fine with many abbreviations, but when they keep changing things like CEO to CFO or adding too many letters to things like LGTB (I thought gay covered enough), I find it tedious to keep up. TLDR is fine and I don’t think summary is an accurate discription of TLDR - but, at least in the beginning, it would be considerate for people to put in paranethesis what TLDR (Too Long, Didn’t Read) means. Language is supposed to be about communication, but some people use it as a way to set themselves apart - usually to make themselves sound better. On the internet and in a multi-language, immigrant world, we all could be more considerate by using easier to understand words - considering that non-native speakers may be reading what you write and just because they don’t understand YOUR writings doens’t mean they are stupid. They may have a PhD or two master degrees or make $250,000 a year from their street smarts.