Wait, is there any way to get this information onto a privacy-based blockchain like Oasis? Someone would own a Tip - perhaps they could be compensated for it and Tips aren't made public by default?
The more you write, the more you can read from others, perhaps? Some type of value needs to be assigned to Tips. Best ones can go public, or pay to make it public?? Decentralization would ensure uptime. GlassDoor already has some revealing company reviews.