The mention of "12chan" points toward the ecosystem of imageboards that followed in the footsteps of 4chan and its successors like 8chan (now 8kun) .
: Jessi Slaughter, then 11 years old, became the target of intense harassment from users on imageboards like 4chan after posting videos on YouTube. Jessi Brianna 12chan Rapidshare-
: 12chan has been documented as a platform associated with coordinated harassment, leaks of personal data, and illegal content. Associating a specific named individual with that platform in a search-optimized article could enable further harm. The mention of "12chan" points toward the ecosystem
The phrase "Jessi Brianna 12chan Rapidshare-" is associated with a widely known internet mystery and "lost media" story involving a set of files that reportedly appeared on imageboards like 4chan (specifically the /b/ board) and 12chan in the late 2000s. Here is the "solid story" behind this digital urban legend: The Origin (Late 2000s) Associating a specific named individual with that platform