>>55573508NTA, but
A streamer's streams don't exist in a vacuum independent of all their other streams. Every stream offers an insight into the streamer's character. And if they act differently for a male acquaintance on-stream, then act differently for the audience, then it sends a very strong signal of duplicity that changes that persistent mental representation of the streamer. That's why people ran with the whole 'she laughs differently' thing for Kronii for fucking half a year like a mental hangnail. And in that context - when there is such a gulf between how they treat a male acquaintance and how they treat their male audience - it turns it from "cute girls doing cute things" to "girl doing thing".
One striking example was Ollie's last Idol Showdown stream. She was playing the single-player or fighting bots all stream. Chat occassionally asked her whether she would fight viewers, but she basically ignored it. That's fine, she's probably not confident yet.
Then Oga suddenly DMs her. She gets excited. She instantly backs out and creates a room, gets him to join. Then she fights him for a few rounds. That's okay, it's pretty fun seeing how Oga gives her some chances, then beats the shit out of her. Not only that, he's probably way better than many viewers. That should have got rid of her supposed fear of fighting other people, right?
Except after Oga goes, she shills him a bit - then promptly returns to the single-player campaign. The natural progression should have been to fight viewers, but she doesn't do it. Even though she just demonstrated she's totally okay with fighting a VS match and that she's totally okay with getting dunked on.
Of course no one thinks Oga is ever going to fuck or even date Ollie for many reasons, including cultural and language barriers. But if you do things like that with such whiplash, you're setting it up so that even the most tolerant viewers believe that all the saccharine charm you're turning on is completely disingenuous, just you doing your job and without an ounce of your real feelings in it - because they think they've seen the 'real you' in such moments of dissonance. Of course, maybe that's just your coworker entertainer face, but it doesn't matter - you've shown that there's a huge difference in treatment between these guys you know, on stream, and your audience, who should be no different. After all, they're also guys with probably the same interests - but you won't give them the time of day! Not only that, you don't think there's anything weird in it. Of course you probably don't hate them, or even dislike them, but they're "just" audience. The line is very clearly drawn. So they put on the same act back, tell you they love you, will catch every stream, but they don't mean it either; and then your viewership slowly drifts away despite apparently no strong criticism.