Chase is sending out 1099 forms if you’ve referred somebody to a card and received a referral bonus. Chase is valuing points at 1¢ per point, Chase sent out 1099 forms for referrals last year as well. The main difference seems to be that this time Chase is sending out 1099 forms for people that received less than $600.
Update: Chase has also included promotions from Chase Pay as little as $15 as well and annual fee waivers of $95