Today while performing a mic-check on Skype I tried searching for the usual Echo/Skype Test Call service in my contacts. But I noticed that there were many Skype Test Call / Echo accounts made to lure people like this.
You could easily send them a message by mistake. Echo / Sound Test Service itself doesn’t allow text messages.
I’ve tried reporting a few accounts for spam, but this seems like a very cumbersome process. Not to mention that perhaps some of these are benign joke accounts. But clearly this is a problem, and people should be aware of it.