You nailed it and I hope newbies will understand before posting.
A simple as that, don't interact on a topic that you don't know, it's a cause of spamming if you will let yourself keep posting even you don't contribute any. It's better to give an idea and suggestion that didn't repeatedly share on the thread and as the topic creator should always remember to lock the topic once you have satisfied by the most replies.
• If you're starting a new topic, use the SEARCH option at the top icons above and search for previous posts with the same theme,
• If you're replying to a thread, read through the previous replies and ensure you're not repeating the content others have already shared.
This!
It's very important to use the search button before posting and must read the whole thread before giving your own idea.