With the PC release, I have seen hundreds of issues with players being confused about a few things so here are 2 that seem to be the most popular.
"How come when I chat my name appears as a bunch of gibberish?", for example, PN8435745711... This is your player ID name and needs to be changed at the Character Creation screen. You should see an option below that is called Support Menu. Open that, and select 'change player ID name'. It says it costs AC but I believe the first time is free. It might take a few minutes to update in game so maybe try and exit the game and log back in to see if it appears.
Another slightly less annoying one is for those who have joined an Alliance. Most Alliances have also created their own symbol art icon but by default, only your player name appears on screen. Open the quick menu and select the toggle display option and you will see an option that says character/alliance. Now you will be able to see Alliance names on screen.
If I think of more tips I will add them here.