It says a lot of things. Let's unpack.

You are wrong. That is, I think you are wrong. That is, I see value in saying you are wrong. This suggests I expect my argument to be convincing. But I'm not giving an argument. This is unconventional, and suggests I deliberately do not intend to give an argument. This would normally cause my point to be dismissed; thus I believe there to be an obvious reason why my point would stand up in the face of this absence of evidence. A likely candidate seems to be Special Authoral Foreknowledge, which I have cited before.

I said you were wrong in response to a detailed post by you. Thus, I have already accounted for your arguments and did not find them convincing. Having already brought to mind Special Authoral Foreknowledge, the lack of engagement with the question suggests that answering it would require citing Special Authoral Foreknowledge, which I do not want to do [and which you should not want me to do]. Nonetheless, I believe that revealing that your theory is incorrect due to conflict with SAF is not in itself spoilerful. [Also, none of this is unambiguous but I believe it to be bolstered to prominence by reading "Nope."]

In conclusion, Draco is obviously Voldemort.