While on the touching on SPRINT highway:

Do the "pioneer" roads that were expanded into the highway still "exist"? For example, the road in front of Wisma Damansara, as I recall it used to be Jalan Semantan. This road was absorbed into the Damansara-Link highway of SPRINT. There aren't any signs that indicate it is Jalan Semantan anymore. So I believe it should be labelled as Damansara Link and categorized as a motorway in OSM.

Fine and sensible, until you try and figure out what is the proper address of Wisma Damansara and how are you likely to find it in an OSM search...