But there has been blurring on the chats too.
For example I post on the long running MNVogue threads, now on their 29th 'edition'. These threads are full of links to clothing/style recommendations, discussions about fashion and what we have bought/want to buy/think others should buy.
Readers do not know and have no way of knowing whether many of us are being bunged incentives to mention certain brands or gain other kick backs. That is not the case (as many of us know each other IRL or know of our RL identities) but that is by the by. We could be pretending to know each other.
The advertising that the companies mentioned on there is worth a hell of a lot of money and we know it has been noticed because there have been spam posts by companies drawing our attention to sales etc in the past.
The book threads are similar- plenty of links to Kindle Daily Deals. How do you know one or more of the posters are not involved in the business. Same with any other thread with links and recommendations.
Online it is impossible to separate the two. MNers are already blurring the lines and taking advantage of a free at point of use platform upon which to do so. We sometimes cross the line into complacent entitled arrogance regarding the demands we make upon HQ about how they should conduct their business. Maybe if we actually paid to register, we'd have more of an entitlement to entitlement?