Hello Pieter,
I think we all know the problem with disturbing shipping when taking photographs, let's take it as a challenge and don't curse on them (except on motor yachts...) :-)
To answer your question concerning locations in countries like China, well, that should be quite simple. IF there are regular contributions from a certain location, e.g. in China, it would THEN make totally sense to include this location in the list of that country. Why not ? But without pictures from a specific location it would not make sense, especially in such a huge country like China. So it could easily be decided wether a port should be added to the list or not.
Let's hope that the IMO and location issues are being solved soon. There are more bugs waiting to be addressed by the IT-team. I'm willing to have patience, Rome wasn't built in a day....
Cheers, Hans