this is supposed to be the forum where people can ask any question without fear of ridicule
Just remember that there will be people with loved ones on board any particular flight and if/when they may read that some spotter has posted that their loved ones flight has an "emergency" when, it appears, it was merely a pressurisation problem, well that's when such posters become the "unwanted".
One might argue that a pressurisation problem or a particular transponder code designated an emergency but only to the naive and the spotters does it designate so.
The habit/addiction of monitoring these "spotter" websites for particular transponder codes and "let's hope it crashes so we'll really have something to post about" , well .....