The click to tell feature is a good work around to message people you've come across on that gaming session but after the course of a day, a week, or longer you probably no longer have that option.
As was mentioned before the dev response, the 'audience' autotranslate category persists across play sessions. You can recall the names of people that have spoken in your presence even if it wasn't the same day.

Honestly, surnames are fine and I think people should be able to have as long or short a name as they want. It's up to them to accept the consequences of doing so.

My name is 1 letter too long for the new name entry screen. Thankfully I'm not forced to change it.