encyription of messages

All about Trump trends. I don't know answer for that question but think that not threema or signal. Why you scare about it? 

People are getting more concerned about their privacy and they do not want site admin to be able to read their messages. In other words, people are looking for private chat.

I really don't think they are encrypted. The rocket chat plugin is, but it hasn't been updated.

I think for the storage not yet. So anyone who can reach to the database may read the messages. As well as I know this was planned for an update.

for the transfer if the site uses Https protocol yes it's encrypted.

Messages and Storage is not encrypted, but they do travel over https between conversations. 

It would be great to give the site owner the choice to switch encryption on or off and the choice of encryption protocol at set-up (possibly after set-up too). That way those that would like encryption can have it on and they can meet their countries laws and standards, anyone else can have it off if they want.