Blocking a user on TikTok effectively severs communication between both parties. The immediate consequence is the inability for either user to send new direct messages to the other. Existing message histories remain visible but are rendered immutable, meaning neither party can send follow-up messages within those threads.
This feature is paramount in providing users with control over their interactions and experience on the platform. By implementing a block, individuals are empowered to mitigate harassment, unwanted attention, and other negative engagements. Blocking capabilities have evolved over time across various social media platforms, reflecting a broader recognition of the need to ensure user safety and well-being within online communities.