A suppressive person is someone who behaves in a way that is harmful or mean to others, especially towards those who are part of something called Scientology. This is like a special club where people follow a particular set of beliefs and practices.
Now, when someone is called a suppressive person, it means they're doing some bad things, like lying, cheating, hurting other people, and even breaking the rules of Scientology. They're just not being nice, and their behavior is making it hard for others to follow their beliefs or practice their religion.
In fact, a suppressive person can hurt others so much that they can even make them feel sick or sad. That's why in Scientology, they are said to be "Suppressing the spiritual progress of others."
So, if someone who is part of Scientology believes that you are a suppressive person, they might try to avoid you or cut you off from their life altogether. This is because they believe that by doing so, they can protect themselves and others from your harmful behavior.
In the end, being a suppressive person is not a good thing, and it's something that people should avoid as much as possible by being kind and respectful to each other.