1. A world can show many more players than are actually in it by someone simply rapidly spinning up hundreds of instances of it (This was reported 2 years ago, and is widely understood to be something that VRChat cannot easily solve).
  2. Tags are only author-defined, are case-sensitive (why?), and are language-exclusive, so that no search or recommendations system could possibly change the game against those looking for an easy exploit. The information needed to drive better search or recommendations is either wrong or simply doesn't exist.