I've heard of a life church where they had a 'fasting until salvation' practice. They made members fast for days on end, claiming it was a way to get closer to God. Some members ended up getting seriously ill due to malnutrition. And in another church, they had a system of public shaming for those who didn't follow the rules strictly. They would make the member stand in front of the whole congregation and confess their 'sins', which was a very humiliating experience.
Sure. There was a life church where the pastor was found to be embezzling money from the church funds to support his luxurious lifestyle. He bought expensive cars and houses while the church building was in a state of disrepair. Another example is a church where they had a 'love bombing' technique at first, making new members feel extremely welcome. But then they gradually started to control their every move, telling them what jobs to take and how much money to give to the church.
Well, in one particular life church, there was a case of sexual abuse by a church elder that was covered up by the church leadership. They didn't report it to the authorities and instead tried to keep it quiet within the congregation. This led to more victims as the abuser remained in a position of power. Also, some life churches have a system where if you leave the church, they will spread false rumors about you to other members, making it difficult for you to have a normal social life within the church community.