The realm forums are as dead as the realms themselves. You may see characters running around, phasing in and out around you now. No one is talking or interacting.
Realms are dead. Sharding and phasing have killed any sense of community or place “where everybody knows your name.” Players actually randomonly appear and disappear in front of you. No longer do you actually know anyone.
Physical servers don’t exist anymore. They have been replaced by cloud architecture and cloud-based services, such as AWS, Google Cloud or Microsoft Azure.
These new infrastructures have replaced individual physical server blades with microservices, each which run in their own instance, typically as EC2 containers hosted in the cloud provider, assuming Blizzard is using AWS. But it doesn’t matter, they’re all very similar.
Cloud wervices “abstract” and distribute what a single physical server used to do all on its own. The services are handled by the cloud provider so, for example, AWS services handle dynamically increasing/decreasing resources according to auto-scaling and load balancing configuration of EC2 containers - all of which is based on cost and how much you want to pay AWS to scale up.
What is truly tragic to community-based gameplay that used to be foundational to WoW, is no one at Blizzard apparently ever asked the question: what will this do to community?
The fragmentation of the IT infrastructure (combined with all of the modern conveniences of current WoW) has fractured the human social bonds. In a way, fragmented infrastructure == fragmented community.
What use to be a single server, as a single home-town ream of ~2,500 people is now a global matrix of microservices across Amazon Web Services, for instance.
The realms show it - no one is anyone, anymore or from a home-town where they call home. Coupled with the conveniences of Looking For Group/Raid tools, I don’t have to talk to anyone, much less know anyone, to play the game.
You might as well say, “Hi, I’m from shard #2253! Oh, time to phase out. It was nice to see you, good-bye and by the way, you’ll never see me again.”
Now, they want to utlize such cloud-based load balancing solutions into Classic (i.e., sharding). So, instead of adding another physical server, the Auto Scaler creates another instance and, I would guess, another a quasi-realm within your realm (i.e.,. shard). That cost money. The more you scale up resources in AWS, the more it costs. Every second cost money in AWS.
Instead of finding a new permanent home in another realm/server, the infrastructure scales random players (who you will probably never see again) around you around you, and before you know it, community is gone - because who cares about you? You’re just an anonymous, random NPC basically to me, who will disappear in minutes and never see again.