[HairOfTheDog]

I think the effect and underlying message is to mock real holidays. It is to say, in effect, that holidays are just made up events anyway, so why not make up our own?

I think the point of the satire is to mock the recent trend toward everyone making up their own holiday.

[Cagey]

I think the point of the satire is to mock the recent trend toward everyone making up their own holiday.

You just nailed it. Sadly, some will never see that and that costs them a lost laugh.

[wireman]

The self righteous are incapable of understanding satire when it "threatens" what they hold so dear.

It shows their insecurity when they are afraid to poke fun at themselves (or their beliefs).