So far everyone mentioned a different platform, which already shows why it wouldn't work.
I think Discord is the thing that doesn't feel like an invasion of privacy for most people while at the same time offering chats with community vibes. But most people wouldn't be bothered to use it. Also, we already have Streethop, which works again. If people move, it might become abandoned or communication becomes fragmented, which doesn't work well for such small communities.
Chats also dumb down the information by focusing on quick and easily digestible bits of text that disappear within minutes or hours, as opposed to true discussion and more concise pieces of information that just stay there and you can revisit anytime.
I'd be down to join a chat group as an alternative if enough people are in, if it doesn't harm the forums and if Rukas is fine with it, as I feel like that wouldn't be a respectful thing to do after all those (nostalgic) years and after the revival efforts. I'm probably more fine with staying here for as long as SH is up and running with the remaining regulars. In the end, after all that time I'll be checking in wherever the community is.