I kind of want to open this up more as a discussion. I once saw someone say fans shouldn’t call idols by their real names if they have stage names because they aren’t close to them like that or it’s disrespectful since they already have a stage name. Personally, I don’t see an issue with calling them by their real names if they don’t refute it. For example, sometimes out of habit, I call JB Jaebum. I never saw it as an issue, as idols have expressed being close to their fans and using their real names sometimes feels more personal. However if an idol has expressed that they don’t really like their actual name, like Sunny expressing in the past she’s not a fan of Soonkyu, then I won’t call them by that name. I guess I’m more curious to know if people think you have to be a close friend or family member to use their real name.