PMFJI, JMHO! WRT
Are “tl;dr” comments offensive and/or discouraged?
Offensive : NO
tl;dr? Heck I didn't even know that this term existed. If I would have asked a question and you would have replied back with that comment, I would have simply asked you to explain what you meant?
Result : Time wasted. Energy wasted. Productivity - Zilch!
Think of it this way... Would you like that to happen when you posted a question? :)
On a funnier note, I might have even replied with this
"Hi, last night a blind witch stole my magical sphere. I have been scratching the crinkled hair on my hairy chest and stupidly staring at the screen for the last 10 mins but am still unable to understand the magical spell that you are trying to share with me. I give up!!!!"
On a serious note,
In such a scenario
Scenario 2, here are few things that one can do.
Downvote + Leave a comment
Asking the user politely to amend and rephrase the question
Read the entire stuff, edit it and make it more presentable.
Which one you choose from above is entirely up to you. I personally prefer the 3rd way. But then it again depends... If the post needs a complete
overhauling then I go in for the 2nd way.