Some basic math as to the proportionality of the proposed measures
Registered drone pilots 192,185.00
Responders 2,629.00
% of Pilots flying weekly 60.5%
Using the above data we can see that 116,271.93 total weekly flights
Flights per year 6,046,140.10
Flights per month(4.3 weeks in month) 499,969.28
Months in reporting period 35
Total flights in reporting period 17,498,924.71
Number of reports 18,290
%complaints vs flights 0.001045
The only assumptions made was to assume correlation between responders and total numbers being the same, and that all complaints were valid which of course in the real world are not