Doesn’t the domain name clearly infringe on Microsoft’s trademark? Even as someone who is knowledgeable, I can see this causing confusion. As useful as this is, I don’t see site lasting for very long at the current domain without an agreement from the trademark owner.
They are likely wise enough not to threaten a community that’s doing tons of valuable free work for them.
IANAL but I would assume that, since they're moving from "minecraft.fandom.com" to "minecraft.wiki", it should be no more infringing than what they previously had, unless second-level domain names are subject to more scrutiny than third-level domain names. And if that's the case, then I would expect that the infringing party would be their domain name registrar, for being the one to sell them the hypothetically infringing name (which isn't to say that the operators of the server couldn't be subject to trademark claims for other reasons unrelated to the domain name).
The previous domain was minecraftwiki.net, and I don't see a big difference here?
minecraftforum.net has been up for well over a decade at this point.