Uh..It might not actually be Screamer who speaks but a Zuma among her entourage.
The way to tell this is to pay attention to the initial encounter. I'm not sure how it goes with Screamer since the only times Garret has experienced her presence was the couple of times she blasted soundwaves that knocked him out. But with someone like Haktoo, generally how it goes is that a Zuma approaches you and speaks to you.
And that just raises the question that should be considered, even when talking to a daimon "directly". Because you never know whether the one writing back is still another human, a Zuma, speaking for the daimon. And yes, Zuma humans do talk like that sometimes.
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