Nothing wrong with posting about success so long as it is not at the direct expense of someone else.
An adult posting how much they make or who they got a promotion over is tacky at best, just as a club posting where they rank or who they beat is too. Posting you got a big promotion or went on a vacation is great, just as posting a team tournament win is also.
Nothing wrong with being excited and sharing good news. If it bothers you, you need to evaluate your jealousy or stop following other clubs if you cannot help yourself.
