Welcome @Justcourt1!
Pandora stations adapt with every song to try to find the right music for your stations. Without Thumb info, Pandora has to guess what songs you like or don't like. Keep in mind, Thumbs are station specific, so please feel free to Thumb up and down accordingly. Giving a Thumb rating on one station will not affect any of your other stations.
You can find out more info about how Thumbs work here.
