Unfortunate that hacker news doesn't have reply notifications but I'm curious what you did when retiring it.

Just recycle the parts? Was it your main and only server?

I have that server running Truenas, I have another PC I had built for friends and family for Plex only, and I have a third one running an ethereum validator which is the most powerful but only does that.

It's not stuff that would sell for any price i'd care to get and just throwing it away / recyling it feels bad since it still works.

I still have one powering a firewall. The only pressure to replace it is power consumption.