I also get asked this a lot. The answer is - not easily.
(For reasons of conscience wink and coding.) However...

It _is_ possible. But it's not something most of us feel comfortable about.

It is not part of the stock code that comes with any* forum.

It is possible to write a MySQL query to examine any aspect of the database.

This is something that an admin can do (assuming they have access to the 'Database Tools || SQL command').

Although, I suspect anyone doing this would probably not sleep well at night.





* - that I am aware of, anyway...