First, I'd like to thank @Toby for creating this amazing software. I love it for its simplicity. It really is fat-free!
I am using ET as an artist critique forum where people upload work to be critiqued every week (every Sunday night) and members are given until Saturday night to critique each others work. The cycle starts all over again the following Sunday night. What I'd like to do is have an automatic auto lock feature where all posts that were created > 6 days ago in a particular channel ("to be critiqued") gets locked and moved to another channel (e.g. "Archive"). In this way, the critique channel will only show the new posts to be critiqued for the following week. This would be a scheduled feature that occurs say, Sunday morning at 3am EST.
Can someone give me clues on how to do this? I'm not a coder really, but I can learn. I've been researching and it appears that this could be done with sql and a cron job, but I don't know where to start. Ideally, it would be great if this were a plugin, but whatever is the fastest way, that I will investigate. Thank you for any advice anyone can provide.