In article , Liam Roberts
wrote:

Anyway, either the (Android(/Apple(iOS))) one-contact-list method is
the smart way *or* the seperate-contact-lists method is the smart way.
Guess which of the two methods is used on billions and billions of
devices!?

But why on earth would I have the same contacts in my email program as
my
instant messenger? Even if I did, it's different info. The email program
records their email address. The instant messenger needs their er...
whatever you call their instant messaging ID.

so that there's one database to manage, which various apps can access
and pull the relevant information.

Only useful if you use several programs that use the same information. I
tend to use one for each task, and assume almost everyone does the same.

you assume wrong.

Why on earth would you have more than one email program?

missing the point entirely.