You say this like it’s a bad thing. Getting topics moved out of a topic to their own topic is not a punishment or a bad thing: it’s a way to highlight discussions going on on their own and allow people who want to engage with those discussions to find them and engage with them, rather than them being hidden away inside another topic that bears no mention of the topic of these posts.
Far better than “waiting” for “OT Choppers”(??) to sort out your conversation threads (which is often really hard because people touch on several more or less related topics in a single post), if you sense you’re talking about a new topic than what you’re current topic is actually about, click that in the top-left when you’re writing your reply and select “Reply as linked topic” rather than replying in-topic.
Remember, keeping the forums tidy is a collective effort.