https://102716.xyz/context?channel=zatsudan&created_at=1642701126503Discussion about the Vtuber Zia's sister starts at 17:36. Not too much is said and the posting rate stays low. At 17:52 Beatani simply says "eh disgusting". Within 2 minutes there are 50 replies, many of them directly referencing Her.
This wasn't Beatani simply joining a topic that was already picking up, but she was the core of the interest. For 15 minutes after it was mentioned only a handful of guys make a handful of posts about this topic. And the exact moment Beatani posts the activity explodes.