The negativity bias can happen to anybody. In fact, most of humanity is predisposed to favoring negative sensory input and memories over the positive. This can often hardwire us for issues like depression and a lack of motivation.
Providing a newsletter for your opt-in list subscribers provides many benefits in terms of driving traffic into your site as well as boosting the sales and profits of your site and company. This is a marketing ploy that will not hugely dent your marketing budget and will not also require many man-hours