I think they have a bug here here: https://github.com/twitter/the-algorithm/blob/7f90d0ca342b92...

Code: ( "has_gte_10k_favs", _.getOrElse(EarlybirdFeature, None).exists(_.favCountV2.exists(_ >= 1000))),

Should be: ( "has_gte_10k_favs", _.getOrElse(EarlybirdFeature, None).exists(_.favCountV2.exists(_ >= 10000))),