What do you think about people who say unkind things to others using a computer? How would you feel if someone said something mean to you on the telephone, in an email, or in an online discussion? Is there a difference between the telephone and the computer?
I think that people don't have any other way to express their feelings or they're just hurtful people.
I'd ask them questions just to figure out why they are saying such mean things and I would be a bit hurt inside.
Yes, there is a difference between the telephone and the computer: with the telephone, you give a verbal discussion, on the computer, you don't really have a verbal discussion but you do still have a discussion.