A quick question that you should be able to answer:
Do you remember why you are in Bitcoin?
(I think I remember)
Yes, I was first introduced to it by Steve Gibson. Also I was working with IRC stuff at the initial stage.
Correct for the "Steve Gibson" part.
Reference (only visible to donators, vips and staff):
https://bitcointalk.org/index.php?topic=66601.msg805221#msg805221Otoh, this is information that can be seen in your post history, so it doesn't necessarily prove much.
What it tells me is that you're either really BTC_Bear or someone who's quick at searching through his post history

The IRC stuff is nothing I can confirm or deny.
It might actually point to you misinterpreting the above post (IRL != IRC), which would make it seem more likely that you're an impostor.
Difficult.
Also, would it be possible for you to sign a message with a bitcoin address with some substantial amount of bitcoins in it?
I don't know what does substantial point here but yes I can transfer some small amount of Bitcoin to my currently signed BTC address some days back.
Again something that arouses my suspicion:
I've not asked for a transfer of bitcoins to one of your old addresses.
I've asked for a signed message.
I assume BTC_Bear should know the difference.
Difficult.
But go ahead, show us the money, it might be convincing, if it's a large enough stack

edit: can Steve Gibson vouch for you?
