Indeed. There was a lot of good information in there. This post in particular:
I want to say this was the post that at some point I had forgotten the precise details of and somehow got it into my head that you could also create guilds that were comprised of members from different servers that were part of the connected realms. Same with doing dungeons/raids. Not RDF or the raid equivalent introduced in Cataclysm of course.
That might take away from the small community feel but I can also see some merit to the idea of being able to recruit folks from any realm within the cluster to run dungeons/raids with should the population on a particular server get so low that it makes it very difficult if not impossible to do so.
started off with a several mini-clusters but then they got merged further into two mega groups and now Just the PvP and PvE clusters (basically mega servers)
And then the solo servers (RP realms)
Itâs been this way since 2023 ish.
Since that time I was under the impression that there were no longer other clusters
the server clusters were never further merged since classic era inception there is 2 dead east coast clusters and the west coast pve cluster which has a decent playerbase. other than mankrik and whitemane. also all RP realms are solo servers