I hope I am missing something, but I can not say any of them proves anything 100%. Before tagging an account we need solid substantial proof of being alt.
One similarity I see is both accounts sells account and things, but it's not again enough for me. I am going to watch this topic. If you spot something which 100% connects both accounts then feel free to PM me if I miss update.
Cheers.
The images of the time log is not a good evidence for convicting someone of a Scam Accusation but I do believe that the @Darkakula is an alt, I have looked into the post history and I saw that the user in the Digital Goods child board, specifically at the Invites & Accounts, that is a pretty deep part of the Marketplace Board and I do not think that if you are a newbie, you would be thinking of going there for your first day as a user in this forum. I am not saying that this person is an alt account of the accused but I do believe that the one that I @ is definitely an alt account of someone.