Hi everyone! As some of you may have noticed, for tweets that were retweets originating from the same account (i.e. they retweeted themselves), there is an embedded retweet field belonging to the original tweet object, which has the exact same value as the parent retweet field. This is an issue for about 2000 tweets. We have decided to exclude these tweet IDs in the scoring. You can still continue to do all the predictions as you were before and submit as before on the entire test set, but just know those tweets will not count towards your score. We have re-run the scores on the current submissions, so you may notice a slight change to the scores. (Big thank you to @janmarais for pointing this out to us!)