For the moment I see unnecessary to close the community or delete it, both because it is the first community of Minetest/Luanti to be created in lemmy (of any instance), which implies that by age, being in the first and largest instance of this network, number of members, posts, etc. appears first in all searches of the different instances in everything concerning Minetest/Luanti.

And secondly because of the recent change of image and name. Only until 'Luanti' as a brand name surpasses the 'Minetest' brand name, can the latter be discarded. As mentioned in the blog post:

you'll probably still hear “Minetest” occasionally in reference to Minetest Game which will remain a testament to the project's roots. Otherwise, Luanti now represents the future of the platform.

BTW, you can be a mod here, and unify efforts with the community of your instance :D