I suppose it is human nature to tar everybody with the same brush and generalise.
When I am in Kruger, I am usually in a hired sedan and thus do not have the luxury of the extra height to be able to see over the long grass and so, what upsets me at a sighting, is when a vehicle, don't care whether it is an operator or Jan Public, is inconsiderate of others who are also just trying to see what is happening or catch a glimpse of an elusive one.
I think that is all comes down to education! If people are taught the correct way to act and also given an explanation of why they should or shouldn't do something, maybe it would be a more pleasurable experience for everybody.
Recently I have had a solo leoaprd sighting messed up by somebody who was polite enough to pull into the space I was giving the leopard as she was walking down the road calling her cubs, had a HUGE safari vehicle, who was way bigger than I was, pulling in and blocking my view on a kill...and believe me he would have been able to see it even if he hadn't moved and lastly, I had to tell people on 2 occasions to STOP as they were blocking the path of a leopard who wanted to cross the road with her cub and also a cheetah who wanted to cross the road looking for a mate! People just don't know how to read animals and their behaviour in general.
A little knowledge may be a dangerous thing, but no knowledge at all is far worse.
So, it is not only the OSVs that are the problems, it is the SUVs, MPVs, the "I can see, so bugger you"s and anybody else who is inconsiderate and doesn't care.
Wishing everybody the sightings they wish for over this festive season, whether it is a bird in your garden or your first impala in a park! Drive carefully and consider others.