What innovative loyalty program did Ben & Jerry's launch in 2010 that dramatically increased their customer retention rate by creating a community of brand advocates?

Ben & Jerry's has built one of the most devoted customer followings in the food industry. Their unique approach to brand loyalty combines quality ingredients, creative flavors, social activism, and community engagement. This trivia question explores how this iconic ice cream brand maintains its impressive customer retention rate despite premium pricing in a competitive market.

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Chunk Spelunker Club, where members received exclusive access to discontinued flavors and early taste-tests of new ones
Flavor Fanatics, a points-based system where purchases earned free pints and merchandise
The Ben & Jerry's Chunk Mail program, delivering limited edition flavors directly to subscribers before retail release
ChunkSpelunkers.com, an online community where fans shared flavor reviews and earned rewards for social media promotion