Because they are not real - these are obvious phoney posts. Demoncrats pride themselves on their advanced education. I think people post these things for the same reason that DUmmies post phoney posts on DU purporting to be from conservatives.
You think a FReeper posts these?
Have you ever read any pf the posts on DU? Many of them are as badly misspelled as this troll's post. Go read the DU FUNNIES threads. Every single one of those are legit!