This site uses Akismet as a spam filter and all new members reply goes into a moderation queue that requires manual review of Mods or Admin so it will only appear after review and about the thread it is also applied and if you are trying to create thread in BST section then you need to become established first read this for more help https://forums.digitalpoint.com/thr...ers-answer-of-your-why-where-and-how.2637220/
Akismet looks at more than just the message... they also look at your email address, username and IP address. It might think there's a high probability of spamming based on that info as well.