Or, if someone falsely set tasks just to see who is the message to the conversation and can then write messages although it is not a registered member.
We checked and working. When you open the box to contact the user, showing the secret code.
So it is not a bot, but a user who has found a secret code via fake accounts and writes messages without problems, although not registered/logged in to the site
![Smiley :)](https://forums.osclasspoint.com/Smileys/osclass-emoji/smiley.gif)
It should also somehow disabled.