>>23648092Doesn't seem like they do, at least not very often. Afaik Kiara didn't talk with veiwhore at all after the collab debacle and just recently she mentioned that how she learned from some irl friend on that convention thingy that ironmouse wanted to invite her on that crappy talk show of hers because "they both have talkshows" she said mouse had to be shy because she never contacted her about it.
I don't know about Mori though, it seems like she actually talks with mouse sometimes and talks about her with respect that's actually pretty annoying because there's no shortage of "OG Vtubers" in hololive, I'm not sure if she's actually even aware of it though.