I have to admit that this was not okay. Sorry.

Better I had written sth like "I will check again if you have a security question in place after 5 days. If you want to keep security question, please be advised of the disadvantages (link) and shortly confirm to me that your security answers entropy is sufficient (ie at least as high as your passwords entropy). If nothing happens, I will notify the board administration to ensure DefaultTrust integrity". Next time I would do so. It was never my intention to threat someone.