For what it's worth, banter on social media with someone you're not familiar with is almost always playing with fire. It's really easy for something to come across wrong or just be kind of exhausting, and this effect is magnified the more of a spotlight that person has. You're just one of thousands of interactions they've had that day/week/month, and so unless you know they enjoy that kind of playfulness, I find it's worth assuming they don't. This is, ironically, especially true with people who publicly post in that tone, because they get it coming back at them all the more frequently.