Unfortunately, Tinyboard's spam engine is shoddy at best and still picks normal people as bots. All we can do is ask you some questions and see if it starts happening to other people. Like -
>What is your current browser, what version?>What plugins/addons do you have installed?>Are you posting from home or public? (I'm assuming home)>Do you use a VPN or proxy?
But also, you post a lot of links, which is fine and the thread is good. However, tinyboard can just see this as spam. Since you also post the same image multiple times within the thread, that can also trigger it. Maybe try to find new images, and reformat your posts in a different manner and try again. Repetition will almost always trip the spam filter at some point for some reason, even if it's not spam, and even if it's not actually supposed to trip the filter.
In a tangentially related topic - If anyone ever encounters the specific error message: "Spam post/links detected; Post discarded." Then please contact us immediately, as that means I've screwed up somehow.