I've been 'bothered' for some time
https://www.openstreetmap.org/user/Warin61

Over 3,700 edits .. so far, some bigger than others.

Too easy ..
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On deleting those 'roads' ... if you simply delete them ... someone else might just simply add them again .. thus the problem persists! I have taken the step of altering the 'tag' (the way in which things are described) .. a road will have a tag highway=something ... (something could be unclassified, track, motorway etc) ... I simply change the tag to, say, nonexistant:highway=something (keep what ever the something is) ... in this way the information is very obvious to anyone who looks .. yes it generates error messages for various people .. don't let that bother you .. as long as what you put in is correct and the description is obvious. Most OSM people are very good about things that don't quite follow some 'rule'. People who produce maps from OSM data use the official tags to do produce their map .. things that don't fit just get lets out of their maps - thus your retagged road won't appear.

Oh and to the OSM community ... I have mapped in UK, Africa, India, Vietnam and Australia. Generally before I go somewhere I look at the OSM map and compare it to other maps ... then look to make the OSM one better ... if I do that some 3 months before I go I get a better map when I am there ... and once I return I can improve it further. Sometimes there is not much I can add before the trip due to copyright reasons.