@SurferAl
The advice provided my @Nail1684 is on point.
In addition, it is possible for criminals to take over forum accounts (or other low-stakes accounts) and use them for illicit purposes (e.g., distributing illegal digital content, or communicating anonymously with other criminals). If something like this happens with an account that is traceable to you, then you might eventually expect a visit from a three-letter agency…
My advice would be: If the account is still usable, then change the password to a strong one.
P.S. I’ve moved your post from the Feature Request section of the forum to the Ask the Community section of the forum.