Today I logged my 300th autonomous flight and 200th flight on my Senior Telemaster. These are arbitrary numbers in an arbitrary base and arbitrary units, but hey, they are still milestones for me. 
http://gallinazo.flightgear.org/uas/flight-milestones
I am on a similar number for what I consider proper RPA flights, you and I have been around a while. Many folks new on the scene are claiming one thousand hours, no not flights, one thousand hours of RPA time with multirotors to boot!! Well done always nice to see Telemasters 
My 11 year old his filling out his log book right now, three multirotor trips and a fixed wing flip before school this AM. I think he’s going to soon outstrip me and along with many other youngsters become handy commercial operators of the future.
If you fly 8 hours a day 5 days a week for a full year no matter what the weather or conditions (basically a full time job for a year) that would log you about 2000 hours… but you’d have to start each day with enough batteries to fly out the day (or enough + recharging to get you 8 hours of flight) and then you wouldn’t be able to take a day (or week) off for repairs or sit out bad weather either. It seems like the only way to get those sort of numbers (1000’s of hours of flight) is for a full time commercial operation running multiple uav’s simultaneously. One of my favorite movies is called “the big year”. The guy in the lead for the big year was sleezy and played dirty, but never cheated on his counts because “everyone knows who cheats on their golf scores.” So I don’t know these RPA operators of whom you speak, but I know how much effort it is to get to 100 hours of flight when you are designing, building, coding, testing, debugging, fixing, along with being the chief (and only) test pilot.