Spelling

So I have been a facebook addict as of late and I have noticed how much my friends and others misspell the word "Congratulations". Is it really that hard? I know that hooked on phonics works for me...but it often mispronounced too, which makes people spell it wrong (or this is atleast what I am hoping...or my friends just can't spell).
I see Congradualtions...all of the time. Now its cute if its pun for a graduate, but other than that its not. Why is this word the worse offender? Maybe people should stick to congrats.