Streams get botted all the time (you'll see it regularly with Hololive, for example), and it often isn't the fault of the streamer. People will do it for trolling purposes, or to try and numberfag over other fans, for example. Pity that Reticule decided to take this chance to hate on one of Pippa's coworkers - against Pippa's direct wishes - rather than try to understand why this might have happened without blaming Rie right away. Terrible behaviour by Reticule but I suppose we shouldn't have expected better.