sbenthall
commented
10 years ago I think the best thing to do is work chronologically down the list of most recent tweets of a person.
That keeps the discussion contemporary while also rewarding people who are subscribed more consistently.
Sometimes this will try to RT something that it can't. I think this has to do mainly with if it has already RTed the tweet in question. This should become less of a problem if things scale up, but it would be better to handle this gracefully (for now it just passes without error or logging...)
Better would be to find a different thing to tweet.