Windows 10 Joining the Insider program

[davehc]

Older generation users, for whom i offer help locally, have asked this question.. Most are a little old to be dabbling in the Insider program, but, nevertheless!
On the joining page, this comment can be seen.
"Please add our email [email protected] to your address book or contacts to make sure our emails get to your inbox."

How would putting the email address into my contacts, help MS to communicate with me?
probably a simple explanation, but I cannot see it.
P.S- Sorry, forgot to add the rider "so that we may contact you" (Or similar!)

 

[kemical]

How would putting the email address into my contacts, help MS to communicate with me?

Only reason I can think of is that placing the address in your contacts means it shouldn't enter the spam folder?