I beg of people to not compare the members West Boro Baptist church to Christians that love and serve God.
Christianity to them is a mere catalyst for what is really underneath; hate, anger and fear.
They (or anyone else for that matter) don't have right to condemn another individual, only God has that right.
They call themselves Calvinist and yet they fail to follow the teachings of Christ and the example of Paul, they preach a message of hate towards a world that is already confused and struggling as it is. Their hate is misguided. They pick and choose their scripture to use as a weapon, they twist their way out of the truth that is written in the bible by conflicting it with a misinterpretation of the gospel.
I have been following their activity and interviews. I fail to see any words of hope, love or care towards anyone else in their actions, as Jesus did. You can't ignore groups like this as much as you try, but you can't go up to them and try to take them down out of anger. Their fuel is hatred. Its like fighting fire with fire. The only way to take down groups like this is to use what they believe them, the bible. The truth sets people free, the bible is that truth. The bible can be used in many ways, it can be used as a weapon, or it can be used as a gift of hope.
What they do is indeed heartless, but God can see through their actions. He knows what they are doing and what is in their hearts.
For those that aren't Christian by faith, you can rise above them through silence and turning your back on them. It is the best thing to do If you don't read or understand the teachings of the bible. Actions speak far more than words. Part of the reason why they do what they do is because they are attention seekers, think of them as internet trolls. The last thing you want to do is to tango with them (or groups/cults like them) if you have no or little knowledge, they will have you wrapped around their fingers and on the ropes in seconds.
You have every right to be angry with them, but if you display that anger it will only fuel them, because that's the exact reaction that they are looking for. It gives them a stronger reason to carry on what they are doing.