I will voice on occasion but only to my closest friends and even then its rare. Though my friends live for voice chat... and they do... all the time. So if im not paying 100% attention I have no idea what they are saying. I like text because I can go back and see what I missed. I will generally only voice or vid chat with people iv'e met IRL. I really don't want to hear some dude doing something he wouldn't do in front of his mother.
People like operationhammerman instantly get muted and hit by the ban hammer on my sim and ive encountered people like that both male and female.