I remember my first JC, I was more nervous than the poor sister, she was accused of adultery, her husband already forgave her, and i have to say, the presiding elder of the JC was quite compassionate and did not go into details. However, I still felt weird, three brothers judging over one sister...
Then I had a couple of other porneia cases, where the bros/sis confessed and more or less wanted to establish their relationship to jehovah. in those cases the JC was more for comforting than judging them.
However, in one of the elder school I attended the title of a program part was about how to judge with justice, and I thought by myself, that Jesus said, we should not judge. i hateed elder schools anyway, and this part in particular.
Then I had two different cases, which were steps to my waking up ( I needed more steps, since I was deep asleep ;-)
One was my first case, that ended in disfellowshipping. there was really no room for a decision otherwise, since the sister lived togther with someone, and had no intnetion to break up her relationship. However, I felt really bad afterwards for a long time, thinking, who am I to make such a decision...
The other case involved a young brother, babtized as a a child, and becomeing a teen, he kind off faded form the meetings, and started his own life. Actually the elders would have not pressured him, but his parents, uber-witnesses, wanted clearance and turned him in. He refused to attend a meeting, but he was kind of pressured to write a DA-letter, which results in a formal JC. In this situation I refused to be even part of this formal JC out of conscietous reasons, because he was too young when he was babtized. My fellow eldersa accepted my stance, however, i doubt they really understood, what i meant. They perhaps thought, i was handicapped, because I was close to this young brother, which was true to some extent, but this was nt the reason of my refusal.
All this expereince in time showed me, there is something wrong with the whole concept, but I didnt know what. Only information on the internet lifted the veil completely.