Yes, regularly. In fact daily at some places i operate from.
Unsafe varies from stupidly close to people and/or property, inside flight restriction zones, miles beyond line of sight (and therefore collision avoidance), directly above crowds and congested areas.
All of these are unsafe and all of these can be seen regularly.
We had a rocket scientist try to fly his over the crowd on the display datum *at* an airshow recently. Thats not exactly safe.
Yesterday the heliport used by the Air Ambulance put out a twitter please for the person flying a drone a within a few hundreds metres kindly stop doing it. Again, thats unsafe.
Even 1 idiot in 20 (or 50) is too much. The drone hobby has completely and utterly failed to self police (just look at the posts on this forum for examples) so regulation is inevitable. The users just arent grown up enough.
As for Remote ID, your drone already sends all that every second its in flight and its available to anyone with appropriate equipment within a few miles. You cant turn that off.
ADS-B isnt a great long term solution for ID though purely because the spectrum is already pretty full. Its stretched in some areas dealing with real aircraft. The extra time slots taken with every little drone ALSO sending it would likely cause issues with missed transmissions from real planes and so on.
It needs its own subsystem on a separate frequency to be scalable.
