You know that he has you on ignore for months and has not responded to your posts/replies/quotes for ~6 months to my knowledge. You have even commented on this fact about being on his ignore list. You commonly reply to his threads and his posts.
Personally, I think it is quite fine to respond to posts on this forum irrespective of who made them but I do not understand your own internal rationale when you stated:
In fact, since you know he has you ignore, you keep adding to your replies to him:
Since you know he has you on ignore, of course he does not reply. That does not mean that he agrees with you.