Is this rude to put in a private social media bio?

I have a private shitposting account and I like to keep the followers very small (<15 people) and random people from school keep trying to follow my account. Do you think it would be rude to add something like "not accepting follow requests at the moment" in my bio? I don't want to come off as stuck up by accident but I'm getting kind of tired of rejecting requests :/

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