id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
15035	Suggest to mappers via the UI (or a validator warning) that adding data at (0,0) is probably an error	SomeoneElse2	team	"A recent change in JOSM seems to have made untagged nodes at ""null island"" (latitude 0, longitude 0) much more likely.  http://www.openstreetmap.org/node/4975940278/history is the latest example of this.

Would it be possible to indicate to mappers that they shouldn't do this?

There is one thing around null island - a weather buoy, and it has tags.  Anything new added there, especially with no tags, is very likely to be an error.

From trying to talk to the mappers adding these nodes, I've not managed to get a button-by-button ""how to reproduce"" from them, but it seems to be something like:

o Try and add something
o Decide not to
o End up adding an untagged node at lat 0 long 0.
"	enhancement	closed	normal	17.08	Core validator		fixed		Klumbumbus