I have seen many posts complaining about threads being closed due to being too speculative or subjective in posts. When I first started using this forum, I also felt limited by this. Now I am used to this so it doesn't bother me so much. Now I am just more annoyed by people making posts that kill threads for which I was composing posts (sometimes it takes me awhile to get a decent post together). My primary approach for avoiding getting a thread closed is to • phrase your interesting idea as a question with a scientific angle to it rather than as a statement, or • link to link to some relevant references. Perhaps there are other useful approaches.