We're aware that this practice of self-censorship is rooted in concerns about posts getting deboosted or outright banned. This is definitely a real problem with automated processes on platforms such as Instagram, Twitter and TikTok. We ourselves stopped using TikTok entirely because it was unusable for a Vagina Museum.
Someone designed the automated processes and algorithms. They didn't just magically happen. A decision has been made by some social media platforms to treat anatomical language as if it's something that must be hidden away.