There is one thing I do agree on, and that is that RC planes and helis should not be flown unnecessarily close to people (or animals).
Regarding the hovering over the runway, of who I am one, I really don't think that that is any more of a nuisance, than the idiots who like to do low, fast flybys over the runway every chance they get.
Where I fly, I have learned to pick the time for take off, and pick the time to land, and it doesn't necessarily mean after a full tank, can be after a couple of minutes.
I decide not to take off and fly, when "want to be pylon racers" are flying, because I would be a sitting duck in their path, maybe these "want to bes" can pick appropriate times for them to fly, and perhaps let me fly a full tank now and then :boxing: .
I have seen enough mid airs, and I like my models enough, to not just assume that any time as a safe time to fly.
DKjens