Responding to a comment does not imply that one disagrees with the entirety or any part of said comment and does not necessitate crafting an effective counter argument. In fact, I am not making an argument as to parasitism, parasites, or their right to exist at all.

The closest thing I am making to an argument is that, as a human, if you find what you believe to be a bug in a system and you choose to exploit the bug repeatedly for your own gain while keeping it a secret to yourself, this is, in fact, the least ethical choice you, as a human, can make. (More ethical choices include: not telling anyone but walking away and never exploiting the bug again, telling the system maintainers about the bug confidentially, exposing the bug publicly, etc...)

And I guess, in some way, my response is implying that wanting other humans to make the least ethical choice in these sorts of situations and displaying animosity towards those who make a more ethical choice is a little bit strange.