Instagram Users Fail to Welcome Their New Overlord Beast, Mark Zuckerberg's dog, had his moment of fame on Instagram Monday. The Facebook founder shared a picture of the shaggy-haired mutt late in the evening after his company announced it was purchasing Instagram for $1 billion. It was only Mr. Zuckerberg's fourth post since signing up for Instagram in October 2010. That's $250 million a photo. Some Instagram users embraced Mr. Zuckerberg, congratulating him on the acquisition and welcoming him back to the service after he had not shared a photo in 43 weeks. Others took the opportunity to voice their dismay about the deal and share fears that Instagram will be destroyed by the social media giant. "Congrats on the purchase..." wrote monkm, an Instagram user. I must add however that most of us on IG are on here because it's not FB not that there's anything wrong with FB it's just we like the community here... Another user, anna777loves777you, said: "@zuck thanks for taking IG away from us!!!" An especially vitriolic comment written by brianbrutal said, "Stick to being overlord of FaceBook. We don't want you on Instagram. The comment has since been deleted. When I posted a photo on Instagram about the Facebook acquisition, one user raised a concern: Oh no! I'm in china. Chinese government blocked the Facebook," wrote June Penelope Lee. If Instagram combine with Facebook that means I might cannot use this anymore. While many applauded the Instagram founders on Twitter for successfully selling the company, others said they would quit Instagram, just as they had Facebook in the past. You can see a few sample Twitter messages below. Others shared instructions on how to download your Instagram photos and delete an account from the service.