Your contact list is priceless.
Where should you store it?
Many people use LinkedIn.
It IS designed
to connect people.
But it is also owned
by another entity.
If that entity decides
you aren’t someone
they want on their site,
they can delete your profile
tomorrow.
All your contacts will disappear.
ALWAYS have a copy
of your contacts
elsewhere.
Download them
and store them somewhere safe.
Ensure YOU have a copy
of your contact list.