Are there any community activities or rituals or experiments we could try?
Preferably things that don't require special software.
As an example of the kind of thing I'm thinking of, Reddit has special "I Am A" posts (no, I don't think we should have those), or things we already have, like Quotes or Open Threads or Diplomacy games.
(This is a complement to the previous post about which topics we would like to learn about here.)
Decent idea that's been brought up various times in different contexts. I think doing this right would mean not actually copying the posts, but rather rexposing them (rss feed and being on top on some page). The old comments are still useful and having multiple copies of the same data floating around is always a bad idea.
By "repost" I didn't mean that we would copy the old post. I was thinking that someone would make a new post which contains a link to the old post and a paragraph or so about the old post (either a summary or an explanation of why it's worth reading).
There are other ways to give old posts more exposure, but this suggestion is a simple, low-tech approach which we could start doing right now if we wanted to. We just need to decide if we want to do it, and agree on conventions for those posts (title, tags, how often, whether comments should go on the original post or the new post, etc.).