A large blog I run for a company has an extensive author list. Many of the authors are not good writers, hence we've gotten into the practice of giving them a 'noindex' tag. At this point, the noindex tags far outweigh the normal articles...I would say probably 8 to 1. We have tens of thousands of articles altogether.
We're trying to boost our organic rankings.
Do you think it's bad practice to keep noindexing them? Would you recommend deleting them instead?