There will be some options to refine your play experience. One such option is to set an RP flag to attempt to bring together RP players into the same phasing. Due to this I doubt name enforcement will occur and I hope this limits stupid names but no promises.
I for one am choosing to simply not reply to anyone with a stupid name who attempts to talk to me. I am only joining RP friendly guilds enforcing naming conventions (at least to some degrees). I am playing with global general chat turned off. Names that truly irk me will also get ignored (ignore is account based too). Names that obviously break naming rules will be reported as well.
Sadly it is an extremely rough uphill battle against the Battle.net style names that have taken over mmorpg's of late. I do not care in games like Wow which are mmos that have decided to completely drop the "rpg" element of the game but TESO is trying to be extremely lore and rpg friendly and I will also take efforts to preserve my play experience.
When I found out that ignore is account based I giggitted in my giggity.