I have some more notes to "Working with other people's traces, is not required and often may not be very useful" statement. GPS traces are also useful for mapping paths and tracks hidden in terrain and forests what can't be seen from aerial images. I advice everybody to upload his GPS traces to OSM before they start to draw ways along them. --*Martin* 08:40, 16 December 2010 (UTC)
I'm missing a section on simplify way here in the JOSM guide (or another approprite place on the wiki) and was wondering if a short section would fit here.