How is that admitting it?
Let me put it like this. There are only two ways that what you said could've been true.
A: You activated the forum account two years ago but never touched it.
B: You had a separate key lying around that you would use in case your actual account "spencer2015" to be banned.
However, you have a substantial amount of evidence on you saying that you're spencer, same avatar, same email. All of that crap. I also believe that you are spencer because of these two posts:
Jody Arias must die. Get off the spencer stuff.
There. Confirmed that I'm not Spencer. Now then, let's forget about this topic.
You're clearly spencer.