>>98786360https://www.youtube.com/watch?v=v1E1QEfZIiIIt'll probably be best for you to watch this clip or a similar one for context but very basically Rushia accidentally shot and killed Miko and Miko screamed FAQ after she died (since it was a funny joke of hers at the time). Miko later said FAQ Rushia. Rushia then watched a clip about it, google searched what "faq" meant, and thought Miko was insulting her. She then wrote a giant menhera wall about a certain member of Hololive hating her by saying "FAQ" and how she can't sleep about it. To be fair, this was also around the time of Coco's graduation (which part of the wall was on too) and Rushia was heavily on nerves though she was entirely at fault for this kek and just went completely schizophrenic over it. I swear I had the full thing saved somewhere but I can't find it unfortunately.
