Astronomers are complaining it 'heavily' affects their pictures:
"Remember, there are only just over 100 of these satellites in Earth orbit right now, but there may eventually be 42,000 of them. It’s not difficult to see the potential for Starlink to hinder scientific research efforts." https://bgr.com/2019/11/19/spacex-starlink-satellites-astronomy/
Hmmm - I wonder is there anything else that might possibly be impeded...? If you multiply a complaint by 400...?