Why is it, on my screen at least, certain posts show asterisks to *emphasise* words? Is it intentional, or a quirk of a particular device or browser? Just curious.
It'll mostly be people who are used to WhatsApp. *Emphasising* a word with asterixes in WhatsApp would show it in bold. Likewise, _this_ would come up in italics.
Just for completeness, ~this squiggle thing~ would come up crossed out.