Your webpage is leaking email addresses. See the attached, redacted picture. I have deleted my previous account.
Can you link to this topic in question?
It looks like that was an import from the previous google groups, so seeing email addresses is not unexpected.
I deleted my account, and the topic was deleted with it. I imagine there are many more such instances though, I suggest you clean house.
The way I found the above post was by searching for my email address in quotation marks on Google. If you have the email for a member who was around at that time, try doing the same.
If you can DM me your email address I will take a closer look.