If you get banned from one instance with any level of drama, the admins will gossip about you to their friends who admin other instances. Then you’re banned from two to three instances, and the next time you get into any kind of debate or disagreement, “ah, I see you were banned by three different instances, you must be a troublemaker.” Before long the situation is, “I see that a dozen instances all completely independently decided to ban you. You must be a piece of shit.” ONE person can get you kicked off most of the fediverse because of the level of trust and respect for authority there is here.