Why my new topics never get posted? I think I pay my subscription as any other member
This is because as a new user your first posts need to be approved before they show publicly.
You are a new user and have asked for feature requests. As a new user you are unable to post in #features until you hit trust level 2 (TL2).
Additionally all of the features you asked for are existing items that can already be found in #features and are available to be voted on. In the future please utilize the search feature to make sure your post has not been asked already to prevent duplicates.
Take a look at some of these guides for assistance.