A good start Andrew. I understand what you're saying but I would tread with caution as well. Deciding which posts to delete is still a subjective thing and can run into problems. What to delete and why? Who gets deleted who has in their opinion a valid point but in some one else view is inappropriate.

I don't envy you in this position. Also I hope you don't get bogged down in the small details to the point that the bigger picture suffers.