There is always a risk in preaching. The risk is that while preaching to neophyte if we are not strong then we can get dragged down. There are foolish and non-foolish risks. One should not take foolish risks. If we are not strong in Krishna conciousness and we try to present ourselves as someone who is strong and take care of so many people, that is a foolish risk. Better to get strong first. Strict sadhana and association with others who are strict gives us strength to help others.