Since you are asking for the definition of retarded, let me give you an example.
1. Retarded is someone who expects other people to reply to things they wrote in a completely different comment and not to the things written in the actual reply.
2. Also, the guy that looks back at you in the mirror.
What you are trying to pull out in this conversation is something I had never seen before. You are saying I am dumb because I mistook the stuff you wrote in a reply to one of my comments for your argument, instead of a completely different comment you didn't address to me? Wow! I thought I had seen all the different kinds of stupid bullshit the internet could throw my way, but this is new. Congratulations, your bullshit has managed to surprise me.
Following your example, this is not my actual reply to your comment. My actual reply can only be found by following the secret, hidden clues found in sad clown painting from Motel 6 and in the novels of Ron Hubbard.