That's a possibility; or perhaps the OP is recruiting Hacker News as a vigilante mob to scare off the person whose code he ripped off; or perhaps this is an experiment or a prank to see what sort of internet vigilanteism can be whipped up on Hacker News.
So far, I'm leaning slightly in favour of the guy sending out the DMCA takedowns, in that someone claiming to be him put his code on the internet first by about 6 months, if the internet's timestamps are to be believed, and OP hasn't provided a convincing rebuttal even to that.
Whether these guys are talking about the same code or whether there's some other evidence that clears the OP remains to be seen.
So far, I'm leaning slightly in favour of the guy sending out the DMCA takedowns, in that someone claiming to be him put his code on the internet first by about 6 months, if the internet's timestamps are to be believed, and OP hasn't provided a convincing rebuttal even to that.
Whether these guys are talking about the same code or whether there's some other evidence that clears the OP remains to be seen.