I despise earnings bragging and all that ghastly "hustle bro" porn, so I avoid it with extreme prejudice. I also often rant against it in my monthly Dillon Picks selections, when listing what absolutely and emphatically will not be considered.
On a more personal note, I'm rather old fashioned about certain things: How I vote and my financial affairs being top of that list. You are more likely to get a detailed description of my sex life than any information on those two topics. Personally, I cannot understand why anyone would reveal the specifics of how much they earn (or how they vote for that matter - in the UK, it's a private ballot for a reason). As far as I'm concerned, some matters are private and will damn well stay that way, regardless of how much oversharing by others I'm bludgeoned with online.