If you read the Terms of Use you agreed to you will see that Apple reserve the right to delete any and all posts as they see fit. IN practical terms this usually means that there is something off about the tone, that it might be aggressive or argumentative, for instance. Other reasons may be because Apple policies are criticised, or that it may involve speculation about upcoming products or services. Essentially, the success of this forum is down to a pretty tight signal-to-noise ratio. It's a space where users can help other users using their Macs and that's it.
BTW: this is not an exhaustive list. The Terms are very clear, and if your post falls outside them, or, if in the opinion of the moderators, your post falls outside them, then your post may be removed.
Also worth noting is that the moderators do not patrol the forum looking for transgressions. Users can flag a post as problematic, and then they are viewed by the moderators who decide what to do - or not.
Lastly, never rule out the possibility that someone made a mistake...