>>13224418Peko and Miko are too similar and too large. They become 1st and 2nd of comedic casual streamers. People who like their style of streaming are likely to watch others as a substitute anyway without collabing. The only thing Pekomiko does is steal each other audiences. Big number meant nothing without expanding their base audience.
Suisei and Kanata become different after Kanata shifted her focus away from singing. Kanata is a public chatterbox, SC monster, and endurance streamer. Suisei is a private, SC hater, and short streamer. They have nothing that appeals to other demographics.
Miko and Suisei are complementing each other. Miko is a top streamer with an idol gimmick. Suisei is a top idol with a streamer gimmick. They help each other carrying their secondary activity which neither of them has time to focus on.
PekoTowaBotan is a Pekora attempt to expand her audience into more hardcore style gamer to steal Kuzuha's main audiences.
TLDR; Pekora, Miko, and Suisei become top of their vtuber style. They break up their old regular pairs to diversify their audience.
