Do you need the symbol to know it's what it is? Or would just words suffice? Devils advocate.
You know one thing that always crosses my mind…We all know tons of these apps and social media stuff etc have been used to aide in committing crimes, especially pedophilia. What happens to these companies when and if they get brought up on something that would force them to shut down? Only logical thing I can see happening is brand new encrypted everything being created. I'm just taking the app/SM approach, but it can be applied to other companies with logos.