NuGet/NuGetGallery — comment on commit 52d0602c070f788e29f2c5dea599ca9cf96ffd11
File: Website/DataServices/V1Feed.svc.cs line 51
By pranavkm:

The problem is we share some of the boiler plate code between V1 and V2 (see FeedServiceBase) and it complains if we don't have the method in here. I wouldn't have a problem throwing a NotSupportedException from here instead of doing any work.