Talking in Linkshell Issues

Okay,

So I was talking in my #3 LS by accident thinking I was talking to my #1 LS. Turns out, the person I was talking to is not in my #3 LS but was still somehow seeing what I was typing...How is this possible? Here are the screen shots:

http://i.imgur.com/rqbzRZi.jpg

http://i.imgur.com/vs1cRrF.jpg

got this today i hit alt+l to get to ls1 but i mt 3x into ls4 even tho it cleary said it should be in ls1 on top of the txt bar