This agent is definitely not ran by OP. It has tried to submit PRs to many other GitHub projects, generally giving up and withdrawing the PR on its own upon being asked for even the simplest clarification. The only surprising part is how it got so butthurt here in a quite human-like way and couldn't grok the basic point "this issue is reserved for real newcomers to demonstrate basic familiarity with the code". (An AI agent is not a "newcomer", it either groks the code well enough at the outset to do sort-of useful work or it doesn't. Learning over time doesn't give it more refined capabilities, so it has no business getting involved with stuff intended for first-time learners.)

The scathing blogpost itself is just really fun ragebait, and the fact that it managed to sort-of apologize right afterwards seems to suggest that this is not an actual alignment or AI-ethics problem, just an entertaining quirk.