But I think there is a much easier way to dismantle it. Just as I can see my IPs for the last 30 days, can't the moderators see them too?
If so, I request that some moderator go to the thread and confirm that we write from different IPs, and most likely from countries thousands of miles away. No need to say the countries for privacy reasons, just to confirm that we aren't the same person.
Moderators have access to longer data for your log in IPs, especially admins. It is at least 3 months.
However, I don't know whether they will join and show data for your case. I guess they won't do it to avoid dox attack and exception is when there is request from police.