Do people actually buy and download stuff from someone who "specializes in RATs" and not only that but he is infected with RATs as well?
lol
I would say that it would probably not be a good idea to download anything from anyone who makes that kind of advertisement. I would also say it is possible that the delay in admitting that it was vortex's skype that sent the malware was vortex making additional attempts to take over the OP's computer/account, although this would be speculation.
Personal guess is the OP has nothing to take over. Newbie account.
probably thought he was a newbie and perhaps you wanted to test your exploit on him ? just my 2.5cents.
If I wanted to do that, I'd do it either on myself with a VPS or just in a virtual machine. SimplexHosting sells Windows VPSes for $4/mo or something, and I have plenty of associates on Skype who would happily help me test malware.
Furthermore, I didn't even know someone was using my Skype till I got notifications and PMs someone had opened a scam report against me. I didn't know this user was a Bitcointalk user (rather, I'd forgotten).