A post in a forum that is meant to look serious, but is actually satirical or ironic. Many people often cannot discern fakeposts from 'real' posts and thus they miss the joke. For the lack of a better analogy, pretty much everything Stephen Colbert says on the Colbert Report is the IRL
equivalent of a fakepost.
I want to make fun of this guy, but he might just be fakeposting.
A message left on a message board or personal Note to oneself for the purpose of stroking one's own ego in a susie like manner.
Don't take that crap seriously man! It's just a fake post some susie is using to foist their delusions on other people.