[Update 10/30/18: I just got this today, along with the $5 bonus offer. They’re probably sending it out in waves. $5 bonus is only for those who get the email. Keep an eye out.]
Back in April 2016, Retailmenot bought second-hand gift card exchange Giftcardzen for $33M. Since then, they’ve been selling gift cards under both the Giftcardzen website, as well as at Retailmenot.com/giftcards. Their gift card purchasing program all went through Giftcardzen, I believe, and over time they stopped buying from small sellers entirely, preferring those who sell in bulk.
They are now sending out an email with the information that beginning November 5th, all sales will be done under the Retailmenot brand exclusively.
They also sent some people a $5 bonus offer for registering and making a purchase with Retailmenot.
I’ve bought from Giftcardzen a few times in the past, in fact, I’ve written that everyone should be buying from Giftcardzen since they allow you to cancel a purchase, so long as you haven’t viewed the card. I assume/hope that functionality carries only to Retailmenot as well. If someone who has purchased from Retailmenot can confirm that in the comments, please do.
Probably nothing changes for those who sell to Giftcardzen, but again, my understanding is that they now only buy from serious bulk sellers.
Hat tip to DDG

