I don’t even have Internet at home. I use it in public spaces. There are moments when I had a quasi permanent connection but it was a measured rate service and I still would not keep an always-on machine anyway.
power usage concerns can be mitigated by running irc on an old phone.
Interesting thought but I suppose during moments when I have a somewhat persistent uplink, I might rather try to run ZNC on an openwrt router, assuming that’s possible.
But I must also say the question is not just about me. It’s for a club and that club meets in an IRC chat room. It would not be ideal to impose on all members of the club a need to have a persistent uplink and an always-on machine. The club should establish itself on a server that supports chathistory and MemoServ so that every member can be accommodated.