This is an interesting emergent trend though because it's designed to evade automated content moderation. The whole point of "PDF file" is that it's perfectly i

This is an interesting emergent trend though because it's designed to evade automated content moderation. The whole point of "PDF file" is that it's perfectly innocuous without an understanding of the surrounding context. With real-time audio transcription increasingly common, even livestreamers have to do this to avoid getting hit with automated bans or deprioritization.