It doesn't matter really whether another site currently exists. What matters is making the best use of the domain, and it really should go to whatever party presents the best case scenario. Otherwise, it's just a waste.
My opinion (which doesn't matter) is that it should go to a group of people who are willing to establish -- or create -- something for people of all languages, not just English, German, Russian, or whatever.
With great respect to anyone already working on such a project, a single person who only speaks one language (maybe two) won't really do it justice for everyone, and it'll end up languishing for only a few to use.
I can say that, because it's to my lament that Amiga.org only really serves English speaking users.
Build a group, present it to Alx, he decides. I go along with whatever Alx decides he'd like to do, but hopefully the domain will go to a person/group who will actively use it to build/promote a real repository of information that EVERYONE can use.