When you find yourself in a new place what's required of you is first find the rules and regulations guarding the place after that try as much as possible to adhere to the rules hence you wouldn't be complaining of your post getting deleted or merged.

Perhaps if you have some post most likely related it will for sure be merged if mods finds it convincing to merge.

Getting this message that your post has been deleted is just reminder that you should try to post constructively and act according to rules in each thread and anyone can be moderated regardless of the rank once you violate the rules you will get moderated.