The threshold to become visible for Notes that don't have any links ( i.e.sources ) should be set much higher.

[beyondarmonia]

While there are some relevant and good quality Notes that don't require anything other than text, the vast majority of notes (>90%) that are short and do not contain any links are either bogus, express personal opinions, have bad grammer and spelling, or are harassment/abuse.

It's appropriate for those to have a higher threshold to become visible.