I agree with manueladb, I think you're overreacting just a teensy bit. I understand that you try to protect your privacy, but not everyone wants to hurt you. It's completely normal for people to comment on your unlocked entries, even if they don't know you. It happens to me all the time, and I've made some friends that way. Also, you need to think about this person's feelings. They may have just wanted to praise you on your writing or make a new friend (I'm not sure how they contacted you or what they said) and now you're yelling at them publicly. Sometimes, people just want to be nice and make friends or compliment a stranger. Don't jump to conclusions next time.