The way I see it is some of these subjective areas re content/ volume/ suitability of posts could be solved if there was a way to have threads appear as updated without pushing them to the top of the pile each time.

This way once a viewer determines whether a certain thread appeals to them or not they can just skip it but the poster themselves can keep going with their thread/project out of the 'front line' if they want

This could maybe be done with more sub-cateogries if people felt that was needed...