Have you ever noticed how easy it is to criticise someone when they're not around? How easy it is to fault someone and talk about them badly on the internet? You would say things about them that you would never say to them face to face. I think its hypocritical behaviour to be like that.
One thing that i heard about the Arabs of old was that they wore their hearts on their sleeves. That if they liked you, they showed you that they liked you, and if they hated your guts, they made it clear to you, that they hated your guts.
Nowadays it seems the opposite sometimes. People will criticise others behind their backs, but when that person is around, its all smiles and "masha'Allahs" and "alhumdulillahs."
And another strange type of behaviour that some people exhibit is that when they have a problem with someone, they mention this to everyone under the sun except bring it up with the person they have a problem with?!
Why not go direct to the source and try to resolve the problem there?
There is a great tool for widgets here