While normally, posts can have overlapping characters, if only one character replies to the post, then it's essentially just a thread with that one character. We usually let posts slide unless it's the same certain characters tagging the one post. If there were tags or comments between others as well, we would allow it, but as both threads are just Sion and Ryner, it doesn't count. The thread in Ryner's post came exactly one month after the post with Sion, which gave ample time to obtain a thread with someone who was not Ryner in order to use for the AC.

We're not policing who replies to your posts, but rather, limiting how many solo interactions one can use with the same character. While the threads aren't quite of length, we'll allow them combined and consider this a pass.