Cyber bullying

I made a comment to a photo posted on my Facebook account and the person who posted it was totally  offended. He made some insulting remarks that were, in my opinion off the hook then one his friends chimed with a post about my personal appearance. Now, I do not know either of these persons and I do not want to know them. Now I can see how hurtful anonymous remarks can be and while I did not feel as badly as some teenagers who have taken their lives over cyber remarks posted on their sites, I just took steps to block these people and I hope it ends there. If not, I will have to take further steps. Please, everyone be careful because there are lot of crazies out there who can hide behind a cyber wall.