Honestly it's a gimmick to cloud the real price and provides little to nothing to the project itself. If projects are promoting it instead of what they are actually doing than it should be a red flag for anyone. It's a smoke and mirrors game, stops people from asking what they are really doing with the project.
The rug will come when everyone believes in what is called Burn Token. Even though that doesn't guarantee that the token can be trusted. Many scammers engage in this kind of practice in anticipation of new users asking how the project is progressing. Don't believe in new tokens that don't have a strong community, let alone promotions that you can't rely on. it's better to choose a token that is old and currently bearish, that's better.