As of February 2018, we have discontinued our referral program, which allotted extra queue slots in Buffer Publish if someone signed up using your personal referral link. Any earned queue slots from the program will be honored until further notice. We appreciate everyone who participated over the years!
We're so honored that so many people are keen to share Buffer with friends and clients. Though we do not currently have an affiliate or referral program in place, it may be something we revisit in the future.