Join Date: May 2004
Location: formerly Gold now Diamond, formerly MSY, now LAX, formerly NW, now DL
Programs: Hyatt Plat, Hilton Gold, SPG Gold, Delta Diamond/1MM
Posts: 4,635
Definitely link them. It's particularly helpful when there's a problem and you can't pull up all the confirmation numbers up because of some issue (slow internet, phone not charged, papers in the overhead bin while you are on an active taxiway as your misconnection is happening).
Unless you want to purposefully lose a few family members.....