No you do not. He was in no way being aggressive towards you. Nice attempt though.
You know what I do when a post, or poster, is on I have decided to ignore? I ignore them. What I don't do is make a public proclamation about how pointless they are to converse with.
What's the intent behind such a post? Is there any valuable information displayed? Serious discussion? Positive contribution? To me, they always come across as marking the subject of the post as "other", not worth conversing with, part of the out-group. One thing humans do well is stigmatize members of the out-group. We laugh of them, deride them, and make snide comments regarding them. All of that is aggression.
However, if you have some alternative reason for making such a post,
I do like that you singled out my posts instead of the 4-5 others that called you out as well.
I responded to any posts that had not been covered by a previous response. In particular, the proper response to 242, 244, and 245 was covered in 241. In addition to your 243, I responded to 246 and 247, because they all said something not said before. I have no reason to single you out.