So I was the receiving end of this stalking (my name is Mark and I work at Shopify). I just want to point out how effective his tactics were. At no point did I have ANY idea what was going on behind the scenes. I simply thought, "oh - he's a cool guy, he likes my blog, and seems to enjoy Tweeting / commenting a lot." To learn about his wildly elaborate strategy now is not just amusing, but it's impressive as hell. If any of you guys are having trouble finding quality blogs to write for, or are simply looking for another way to get traffic to your site - give this a read.