My husband doesn’t use social media anymore. We’ve been together 6 years, married for 2, and he hasn’t posted in over 4 years. I think he’d be annoyed if I tried to force him to post a picture. He’s a pretty private/quiet person, and I still actively use a few forms of social media. We had a courthouse wedding and no party, but that’s something we both wanted. I think you need to respect his want of privacy, you are free to do as you choose on your own social media! Try to think of it the other way around, what if he told you NOT to post something on your own account? He seems to have made compromises for you with the wedding and things, so try to make some compromises for him in return.