Ideas need to be expressed, criticised, amended and iterated. I think blogging and news platforms could really benefit from a Google docs-type commenting & suggested editing section. This would also be able to give you an indication as to the reliability of the source.
Tru. Youd have to have some form of verification. Like your account isnt verified until you've made so many comments / suggestions that are legit, and then you move up the ranks based on your qualifications & value of input
