People who never watched matsuri gets mad about matsuri doing matsuri things. I'm surprised she didnt private the vod in the first place though. She kept it up for like a day until managers told her to delete.
Basically she made a joke porn vid with someone whom she just met. And /vt/ being unicorns frothed at the mouth.
You should have seen how hard they malded about ririka for simply existing in the server. They have been malding for like a week since the announcement and she only played it once yesterday.
While vshojo kinda did the exact same thing last week, unicorns dont watch vshojo and vshojo also tend to keep the inappropriate jokes between the girls.
Tl;dr culmination of a week of malding about ririka > swap target to matsuri because first op ineffective