At the moment it is only usable by the moderators to write to other moderators. We will do a few tests and after that we will open it to other users if everything went well.
To be able to write to a user you have to go to the user profile page and there it will appear an envelope icon next to the name, clicking on it you can write a message.
Moderators can try to write me a message using this system by clicking on the following link:
Finally! I think it is clear that this forum is little bit too simplistic in it´s current state.
when clicking the envelope in my profile page I get an error "something went wrong". OK, I usually don't sent messages to myself, but sometimes I am happy to get a message at all:-)
Effectively one of the security options is that a user can not write message to himself, the error is correct :)
Really glad to hear that this returning is in the plans, have missed it alot from the old forums