Content is prioritised using relatively simple metrics with Fanbase currently.
Any content which is put through Fanbase directly will be prioritised for 7 days. This means it will be pinned to the top of the newsfeed for that period of time.
Whereas...
Any integrated content (i.e. through Youtube) will be prioritised chronologically, from latest to oldest.
If you need any more help understanding how your content feed is prioritised, please do not hesitate to get in touch at support@fanbaseclub.com.