«why not» is a good enough reason for me.

" But why?

Why not? MSN Messenger was once Microsoft’s flagship messaging system and social networking platform, in a time before Facebook, Skype, Discord, or Twitter. After Microsoft bought Skype in 2012 and thought that owning two separate chat services was redundant, so MSN was shutdown despite its popularity.

So, why not restore something that helps people communicate, meet new people, and just have fun? "

Fair enough