When people are preying on you

Very often in order to do good in the world we have to merge with the energies that rule it. Some people need to learn and experience the hard way in order to understand what this place is all about. Unfortunately there are people who believe that they are the only ones who are in touch with the divine and so from their perspective, anyone who volunteers as a "Bodhisattva" (a Buddha of compassion) must be crazy. They need to be converted. Usually this happens by force, just like so many religious people have done throughout the ages. Who says that the Christian missionaries truly did human kind a favour by converting so many pagans? These people are like predators. What do you do when they stalk you and make you feel guilty about talking about the difficult times we are all living? There is one such person here on this site who won't stop bugging me. Since I'm sensitive it's the last thing I need. I am here for loving support and not people who need an outlet for their superior attitudes. What to do? It makes me very angry when my spiritual space is being violated by 'know alls'. Do others have this experience and how do you deal with it? Not everyone who suffers is a loser, right?