You can put in a ticket for that. I can vouch for it working

(i made my original accounts name match my forum name). Any previous exploration tags to do not change and stay as they are.
Don't get me wrong, I like the name. I've also used it in the name of all of his ships, and I've no qualms about other players seeing him flying around. There's always been a slight tongue-in-cheek element to the
Elite games, to which this plays quite well.
But when it comes to things of permanence, like First Discovered tags, I wanted to limit those to my real name. Partly because I was always "me" when playing the earlier
Elite games and it's an homage to that, but also because I know how important a sense of believability is to some players. And obviously comic names popping up on system maps every time they're opened doesn't really fit with that. Now I don't really have a choice. Not the end of the world, but a significant change to the way I personally play when switching between the two accounts.
Personally I think "Discovered by" and "Mapped by" tags of inhabited systems is just ridiculous, unless those systems are populated after they are discovered by a CMDR. Seriously, I'm the first one to discover and map an ELW, just days ago, even though there are billions of people living on it? That's like saying I discovered my home town because I was the first person to install GPS in his car...
The First Discovery is a bug. None of the populated systems should have been open to First Discovery by players. (There are a few populated systems that have legacy First Discovery tags from pre-3.3; I suspect these were the result of oversights when civilised space was being generated for the game's original launch. Certainly there should have been no more systems opened up for discovery after 3.3 dropped).
Which leaves First Mapped, which does have historical precedence of sorts. There were cartographers who First Mapped what would become the UK for invading armies and later for the Crown, surveyors who First Mapped it for the Ordnance Survey, pilots who First Mapped it for Getmapping, drivers who First Mapped it for Google Street View etc.
We're First Mapping planets for Universal Cartographics using a newly available generation of hardware, so it makes sense that their systems would record it. Whether it's realistic for UC to have monopolistic ubiquity across the whole of civilised space is open to debate. But assuming we're happy to accept that, I don't have an issue with them acknowledging the efforts of pilots who are helping them to update their database.