Tony,
As I have explained to others who complimented to Christb1 spam: But the best long term effect would be to ignore these people. You can ban IP addresses all day and they will still come back in one form or another. We better focus our energy in being positive and nurturing those who have been affected by this negative attention.
Reacting is what trolls feed on.
Why get all wound up about something people say on the internet? The internet is not serious business and should be taken lightly.
All this attention. Even me posting about this is what the trolls want. We should all go about our way and ignore these rude comments.