Whilst I think what makes a post quality or not is highly subjective. I do agree with what you mean. I know steemit is in beta but I think it has to get better at discoverability, to make it easier for us all to discover great content no matter whether it has been written by a new user or steemit pro.

Tbh though I think some people in the community have kind of created a rod for their own backs. People have been selling Steemit as a social network similar to Facebook really hard. So we can't really be surprised when these new users jump on the platform and treat Steamit like Facebook.