Completely agree. First of all the voting behaviour. To me it looks completely like a score if a specific opinion is popular. I see lots of valid arguments (in friendly words) against a popular opinion getting downvoted. Urban legends getting upvoted while the correct answer has 2 upvotes... Things that are the first thing that comes to mind after reading the headline, but not part of the article at all getting a good amount of upvotes...

And with the sarcasm, innuendo, emotions, playing devils advocate... It's a long tradition on the internet to add hints to the text to make that clear. It's not mandatory in any way, but the subtext, verbal clues and facial expressions are definitely missing. Reddit folks have their own jargon with the '/s' etc. Other people use emojis. But even before emojis were a thing, people added ;-) :'-) or XD or other clues.

Sarcasm just doesn't work that well in text comments and it never has.