Theory #1- It's a conspiracy. The devs don't want the truth about their horrible-state game being spread.
Theory #2- Countless threads never amount to anything. The devs are aware of the state of the game and they don't want players being riled up for no reason.
Theory #3- The devs don't know why the heck they do that. They just do. They're as inconsistent on forums as they are in game.

You decide