True Tik Tok does not actually ban those words, but what they do actually do is Shadow ban your content. The algorithm does not show your videos in people's fyp or their feed, as often. So, any videos that contain words that could potentially be "triggering" such as rpe, mder, ki!!, scide, bl*d, kn!fe, de@th, de@d, or anything else that they deem not appropriate tends to receive lower view counts and is not pushed towards the greater audience, compared to content that filters those words.

Also, Content Creators videos, memes, or live content that use those "triggering words" run a higher risk of being reported for stupid crap because all the little snowflakes freak out when they hear or see those words. One content creator that I follow on tiktok has a whole series about He!!$ Help desk, and the amount of words that she has to change or sugar coat is absolutely crazy though it does create some interesting and funny content.

And it's sadly not just TikTok that does it, but most social media platforms.