Hello Sanada
Welcome to PC
I'm really sorry the "whispering" alternative in chat bothers you. I wasn't sure what it was or what it's purpose until I co moderated a chat. It (and I'm speaking from my point of view only for one particular chat) was used in an emergency or to ask someone known to us something personal but relevant. This can be a good thing and I really wish you'd give chat some more chances. I don't believe anyone in here is that mean spirited to use "whisper" in a bad way.
I agree that is can seem startling to see that for the first time but try small private chats that you create to build your confidence in us.