>>6653765>collab with males isn't the same as feature their boyfriendIt is nowhere as severe. But what exactly makes one more severe than the other? Even for anti-idol, anti-GFE vtubers? The gender dynamics that make one a career ender and the other a minor inadvisable act, are largely the same. The male gachikois watching vtubers who gladly throw thousands of dollars on the girls, aren't exactly gonna activate their provider instincts, if the character is already estalished as "provided" for by another male (note that I do not say the roommate, because that's a different topic people may disagree about). Same reason why girls say they already have a boyfriend (whether it's true or not) to tell undesirable guys to back off.
See Moona and her famous gachikoi that she had to apologize to. Moona was unaware of these gender dynamics, and she had to learn it the hard way. Even female vtubers who disavow or politely ignore the whole gachikoi idol GFE circus, understand the underlying gender dynamics that feed them. Once you are aware of the extreme career-ending move of featuring their boyfriend on stream, you understand why many girl vtubers avoid anything that could even hint at that. Like how Marine assured viewers that she's staying with her sister instead of a guy. Collabing with males is a very tiny risk in comparison, and if there is enough trust, or that the guy is respectful, it can be fine and good. But even a tiny risk can develop into a bigger story evoking suspicions if handled poorly. Which is why Uto the other day said on stream something like "I'm not collabing with males. I'm not stupid" even though the simps in chat keep reassuring her that it is fine.