Yeah he made it to the actual center but no idea what that does for anyone anyway. He did it using mechanics in the game that were not balanced with regards to money and this "Atlus" thing. My guess is they nerfed the Atlus or price of resell value. The guy kept finding them, selling them for massive amounts of money, then buying the resources needed for getting to the center.
Watched some of the last video the guy who made the leak did.
He said that it wasn't just the money from the stones, but rather that every time you enter a new system, there is a star station. That star station is identical in that it contains a minimum of two I think, with a maximum of 4 rooms. The room layout and locations are the same each time. Shows it by running to them and saying "sometimes there is a door there, sometimes not". These rooms contain canisters you can loot for free which he says contains one of four items, either a resource used for warp fuel, or the actual fuel itself.
Once you get a key, each station also contains an upgrade part for your inventory, which is why he started going to the stations. To get more inventory space for gathering, then he realized he could use the same way to get to the galaxy faster. So from what I gather, if he had caught up on the similarities of the space stations earlier, going to the center would have been shorter than the 30 hours. His maxed inventory space was around twice the size of his ship.
Now, while I have no doubt that the constant resources will be patched, as well as the price for the stone, one thing that struck me has been what I have been concerned with from the start.
"Infinite" amount of planets, but there is a limit on the graphical resources to display them. How many until you start seeing the same ones? Doing the same things? 100? 200?
The leak guy explaining that every station is the same with the exception of doors being opened does not exactly scream diversity. Would imagine different races had different architecture, unless we are in some Mass Effect storyline of "someone built all the space stations (relays), but not sure who".
As to there being multiple galaxies, not sure. In the leak he showed how his map bounced into a wall at the center, couldn't travel past it. So it doesn't sound like you're in a circle around a center, but rather more like in a cone going to the middle. If it was a circle, why would you not be able to progress behind it? Would make sense for the outer circle to have a wall, which makes you go towards the center and not away from it, but to show the wall at the star station right next to the center of the galaxy was strange.
To naming, no I have not seen that happen once. It just says the randomly generated name + discovered date.
Last I heard of naming was in the IGN video where they said it was currently shut off or somesuch, and would contain a word filter. It "might" be that naming becomes a thing if there actually is a server that goes live on launch. Though as I have said earlier, highly doubt anything other than names will be uploaded and even if you found yourself on the same planet as someone, you would not see them or the impact they were making like digging/shooting things.