@SpotifyUSA for us parents that don't want to wreck the algorithms every time we need to play a baby song, having a easily accessible 'Private Session' button would be super helpful. Instead of going through a long list of settings.
@WhatsApp the populace is desperately waiting for "Scheduled Messages"! Sometimes it's just too late after hours to hit "send" but the ideas are flowing, or finally have the time catch up on important messages but it's too late in the evening to respond to business topics etc.