you do not know about remote sensing?
The srtm image for the zone is of year 2011, with that the drainage network was extracted.
Until just less than two months ago BING real color images have been created for the year 2016. You believe that the dynamics and uses of the soil do not change. ? Obviously they change, and it is very common to disappear rivers and streams. and therefore the importance of the project with the community.

Really? fuck off foundation OSM.
instead of helping and guiding how to improve the data (eliminating unnecessary nodes) revert the whole dataset. are you fucking kidding me?
of course, publishers do all the control, but companies like BING, ESRI, or google maps, when they have stolen thousands of osm data do not tell them anything. And the team of lawyers of the foundation OSM never respond the mails to address this subject. Of course, as they have business with these companies.