because people fail sometimes. we all have. i’m not sure about everyone else’s comments when they post those but people were pretty rude to me on mine so i can see why someone would just ghost the thread versus admitting that they cut the fast short and have to hear the “i told you so” from insensitive people.
Sounds like anything people want attention for. Look at how many people post that they’re beginning some new fitness venture on facebook.
Better practice is to tell no one, and then announce when you’ve finished. That way, no one’s expectations have been raised.