Hello.

I was just clicking myself in to a discussion thread for the first time while logged in.
An introductory sort of note appeared which encouraged high quality posts. I don't have the whole note in my memory but it mentioned careful reflection before posting, which on a philosophy forum obviously makes sense.
However, it added something like "read through your text such that you can perfect it before posting". I might be overinterpreting this but it seemed discouraging to me in that it gave me the impression that I can't be casual on here - that larger bodies of text might be the only ones allowed to take place in the discussions.

What is the actual line between a high quality and low quality post? Can't I make a few simple personal observations and ask a shorter question in any thread to stimulate discussion or wait and see if I might have something substantial (beyond the simple) to contribute?

To be clearer, I don't mean not being serious with 'casual' - I refer more to a natural conversational style where the dynamic between the simple and the complex, of question and answer in its many potential forms, are implicitly embraced as part of the journey.
If I must have highly sophisticated opinions ready to be explicated through longer chains of argument every time I post I don't think this place is for me.

I'm not familiar with the social norms of this forum. I'd appreciate some help in understanding them. Thank you.