What to do with `building=plot`?

Hi

I am currently living in Kabul, Afghanistan and editing OSM there in my free time. I have noticed one other guy is mapping and using building=plot tags. Though OSM accepts this tag, there is no entry in wiki about it so I am confused with what to do with the tag.

I guess he is trying to map the land in which there are buildings. In some cases he is not doing it carefully as well so sometimes he is mapping two objects where there are three independent land on the ground.

In those places in which I can recognize buildings, I modify the object shape and position and then change the tag into building=yes. But also many times in Afghanistan, it is hard to map buildings as they are in different sizes and shapes and sometimes using mud on roof which makes it very hard to detect and map. Some times, in a single land, there are three or four separate smaller buildings (yard in the middle and buildings around). So I don't know what is the best way to address building mapping here!

Please let me know what to do with such cases.