I don't know about that, you forget about the shear number of totally idiotic proposed laws that lawmakers do put forth each year. Just about every year some one in congress proposes that video games promote violence. Not to mention the fact that just about every year there are proposed amendments to the constitution to abolish abortion, prohibit flag burning, balance the budget, allow prayer in schools, make gay marriage illegal, etc. All of which usually fail with good reason but with the head way the fundies have been making in congress here the last few years the possibility of such things getting enacted at the federal level is starting to get frightening.
Are you proposing theoretically that if this got enough bogus signatures that they'd actually consider the petition if it simply received the correct amount of signatures? I think it's obvious that this petition won't get anymore eyes than it already is receiving from critiquing normal folk like us, and that it's in jest. At least the other dumb stuff that we have to worry about from law makers is worded better, not in jest, and actually the stuff we're looking for to keep from happening.
What'd be nice is if people didn't put up essentially, jokes for people to laugh or over react on the whitehouse.gov site. Now whitehouse.gov and people get to sift through bull ****. What's been so far is the people who don't know how to react to it.