Good. There are around 1300 landuse=residential + name from this user along the coast from Ferring to Friston when one might expect maybe below 100 named areas in an region this size. On overpass I found 958 with name="BN"...  The user did add a few more in 2 changesets dated after this discussion, but seems to have stopped now.  
There are also a load with the town/area as name, which is slightly less wrong, but still wrong.  eg for "Peacehaven" you would expect either 0 or 1 residential area named this, but there are 173; 59 as Woodingdean; 51 Newhaven; 31 Saltdean etc. 