The best counterattack for spammers:
1. Just ignore them, they will be 'crazy' if they provoke others and no one responds. They will got bored soon.
2. Try to talk a bit, they usually aggressive and think that they are the only one smart and have the right argument.
3. When you are in depress condition, you are tend to spam or angry. But think about spamming in the long run, other user's don't deserve to 'feel' our condition. If you are depressed, get some fresh air, ask a friend, hang out or sleep. That's it.