Okay let's do a fucking breakdown of this then.

This was posted on March 15 and asked someone to post on 15 Full member accounts. Let's take Decoded in consideration here.  From March 15- October 27 there is 957 days. Considering you said you posted all the way from that day to around 3-4 months before October. Let's just say that's 800 days. Considering the forum gives 14 activity per fortnight and full member should have at least 120 activity and you are doing 100 posts a week, the farmed account should have at least 920 activity. Decoded has 882. I have 500ish. Aventhe didn't even exist in 2015. Edwardad also has 600ish. The activity doesn't match up.

Case closed.