What are the criteria to conclude that the post is with quality?
The length? The statement? The point? The credibility of the writer? Or is it just upon the discretion of the reader?
Everything matters. Especially the reply to the thread. That is very very important. The core reply should be constructive with language that everyone easily understand. Take time in analysing datas required for the reply and contribute. This would certainly screen your posts quality. A small trick would be, take time in reading replies of Legends, Hero Members and Seriors' and learn what they are towards about and what they write through. You will learn more things and your posts will speak your quality work towards the posts.