Am I mistaken or are all the note taking systems optimized for isolated usage? Some allow some form of communication by publishing notes but the last time I che

Am I mistaken or are all the note taking systems optimized for isolated usage? Some allow some form of communication by publishing notes but the last time I checked, there was no public pool of notes that were open for discovery. I would love to have a system where my notes are automatically linked with notes from other users who have the same ideas or goals.