Definitely you're selling your pride when you do this, but it is a strategy. When playing an MTT with hundreds of people, many people do this to make the money if only a few short stacks need to get out. However, usually you're playing hand for hand and you don't really need to burn the clock. Also, if the blinds are going up in less than a minute, and the BB is about to put someone all-in, this is also a good way to increase your chances that that person bubbles out so you can make the money. However, if you are also short stack in risk to bubble, keep in mind there is still a good chance that person can double up or more with the antes, because a big stack may call with a mediocre hand and the person all-in may actually have a good hand. Then, you are forced to make a play when it comes to your turn or you're going to bubble. I see some people burn the clock early game, and it pisses me off. Keep in mind, however, some people play like 8 tables at a time. It's easy to see who does it on purpose.