Date Registered: 06.08.2012
I still assume what I assume.
For starters, he/she has been on the forums that long, yet this is his/her first post.
Along with that, I highly doubt they would make the mistake of posting this here if they did have experience on the forums.
The way I think of it, either this person has been sitting on an unverified account and just decided to buy a key and use the account they created back in 2012, or this person been playing the demo for quite a while now and only really got into the forums just now.
I will go ahead and tell you that I did not really look to the date registered, but only really noticed that this was their first post. So I will go ahead and give you the credit for bringing up that detail, which does spark some curiosity from me about this individual, and why they've been sitting inactive on an unverified account for so long anyways.