It's important to be noticed and respected at the table. Quiet players might be construed as being conservative, where as an all in player coming over the top of raiser makes a statement. Whether a bluff, or a show of great cards, that ability is there to potentially give you a notice and a future tactical advantage. The amount of scenarios, player dynamics are so numerous it is a strategy employed when it serves a selfish purpose to you. :2in1:
Final table heads up is "nuclear" war, try it there, get in their heads, and F them up, because by that time you're both "road weary". I'd follow my own advice by that time I'm looking for the chop button only to fund out the site I'm on doesn't have one, lol, and I'm exhausted.