Why does everyone stop talking when I say a callout?

I’m a pretty silent player because I don’t feel the need to ruin everyone’s sound cues with just my blabbering but when I do say a callout everyone literally almost goes almost mute? Is it because I’m a female? I’ve had people literally screaming into the mic and I’ll just say “it’s just a game” (the Halloween special makes me love that saying) and they just go silent. I’ve had dudes chatting up about how yummy their teachers were- I’ll say a callout and the joking around is done. I just want to say, as a fellow female, I enjoy the shii talk you have to say about your teacher’s ssa. The screaming in the mic is a bit much, but I still appreciate a good callout.