I bet you anything they're gonna make badges rewards now, like take a 50 minutes survey for two badges.
I emailed them about it and got this response
Thank you for your e-mail. These badges do not offer any points nor monetary value. You earn a badge every time you reach an achievement. You can see what the badges are and how to get them by going to your My Achievements page. Simply hover over the letter "i" to view each description. The unearned badges are the faded ones. The ones you earn are shown first.
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