As a new or junior member, you must make 10 helpful
posts before being able to post in Development sections or gain other privileges.
Please read this guide
to help you get started on XDA, and this guide
as well regarding post counts and development as this information is for new/junior members such as yourself and should answer most, if not all, questions you may have.
Edit and Update: @zedzag
... creating posts that say "Thanks", "Great App/Game", "Cool" or similar comments that could easily be covered by clicking the "Thanks" button instead. Ss. I have deleted your posts with that too. Cheers!