Just curious,
Why is there no way to find out who owns a plot if it is group owned. llGetLandOwnerAt returns a key, but there is no way to find out which group it is. (or am I mistaken).
I get around it by manually finding out the owners by looking in about land, then hard coding the keys. Fortunately, my object is static, and only needs to know my neighbours. If I was to build a vehicle for example, I will get lost outside my neighbourhood.
Some people have built open access avatar key-name databases. Has anyone built a group-key database?