You may not be wrong, what's your assumption about that member? I believe such moves are quite strange because a user who hasn't been active on the forum for many years, starts making posts on topics that are part of reputation board. The case is clear, the user who posted there already had full knowledge about that thread.


I think there's chance that the account might be an alt account of someone else who might not have guts to post in that thread from his/her original account. That could be the case I believe because such accounts when wake up after long time start positing in threads like that shows that they already knew about the thread and that's why he/she posted on that thread instead of any other thread.