Grammar Problem!!

"Wars are terrible and destructive...but there their for more than one reason."

Ok, people are having a hard time knowing the difference between "they're," "their," and "there."  I get that.  I don't know why it is such a hard concept, but I get that it is a common problem.  But do you have to screw up twice in one sentence?  Seriously?

At least this person didn't say "I realize people don't like the rules of grammar, but there their for they're own good."