As you may see by yourself, there was nothing controversial in them, except for providing as many technical details as possible - to help understanding and resolving the issue:
Some of the “marketed products” (such as 7-Zip or Rufus) are even mentioned on NomadBSD’s own website!
I guess it’s the forum software who flagged it as possible spam.
It was the first time you posted something and maybe the software confused it as spam.
Sorry for the inconvenience!
Edit:
This new user tried to create multiple posts with links to the same domain. All posts from this user that include links should be reviewed. See the newuser_spam_host_threshold site setting.