I’ve been last active here in 2010
Hello, and I hope that your studies are going well.
Concerning the above quote (presuming there is no "typo"), if you are referring to the AP Forum in general (inclusive of all topics) and unless someone is using your name at your point of origin, it appears that you posted on the Forum a number of times in 2011 (March-December), as well as a number of times (mainly referencing letter translations) in 2012, April - July.
If by "active" you mean postings, I certainly hope that your communications are not being breached and that you see that you are getting correct credit for all your contributions!
Regards, AP.