I don't know about all scientific fields, but my own field (information security and cryptography) used to have a huge and vigorous community. My timeline now looks like a ghost town.
Worse than that, community participation operates based on network effects. A 7% loss of participants can have a much greater effect on the overall intensity of communication.
Worse than that, community participation operates based on network effects. A 7% loss of participants can have a much greater effect on the overall intensity of communication.