Some sites with the 24 hour rule have a script that limits a user to only one submission per day. Typically, that script would let you know that your second submission isn't going through and therefore wouldn't count against you. Most people with the rule don't actually have the means to stop you from submitting multiple sites per 24 hour period, nor do they have an easy way of tracking it. On those lists, they are more likely to keep a closer eye on your submissions if your name is Alex or awm123 and you are submitting mature vs. young sites with content comprised of hideous women and anorexic teen boys. So what I'm saying is, Tigermom probably doesn't have anything to worry about.
