Having read many success stories of platforms using certain features in their products as growth engines, I wonder, how many of them still work.
For example: LinkedIn used "invite your contacts from your address book" to gain users, however, we understand that it is an irritating feature for the user. Nonetheless, it is hailed as one of the primary reasons for LinkedIn's growth.
How can we use these techniques for our products? And if we cannot , what new examples have you seen in products that we can take cue from to engineer growth in our products.