Well some places the road segment simply vanishes ! Mapping them is definitely a though task .

But one big advantage is it brings focus of the current mapper to that region which means with new imager he could do much better than the old mapper . we are planning a mapping party this weekend .

Tip to find out lost areas : Use http://tools.geofabrik.de/osmi/ with view redction bot enabled. It shows all deletions thanks to people who didnt accept ODBL .

Small question : Would a mapper who hasn’t accepted the license , if he accepts now will it bring back his changes ?

Tried all of them . I am going with renderd .

Renderd has a big disadvantage . It has to render entire meta tile , while tilecache would need to render only 1 tile .

But panning really rocks on renderd !