What is the proper use of destination tagging?

[mueschel]

Did you see this thread with some discussion of the intention behind using destination:street?

Usage of the destination and destination:street tag with the street name

Hello! I’m Anastasia. I’m an OSM communications specialist on the OSM mapping team at Lyft. Due to the lack of a unified approach in OSM, we would like to bring up the topic of using the destination:street/destination tags with street names. While working on our Destination signs project (Exit and Destination Signs project · Issue #18 · Test-DCT/OSM-LYFT-DCT · GitHub) we came across the issue of tagging street names. Currently while mapping US cities, we are relying on Minh Nguyen’s proposal …

Where did you find the information that this tag is deprecated?