Costco doesnt piggyback off of other peoples advertising.
AFAIK, Costco doesn't advertise. And COSTCO does indeed piggyback off the name brands they carry. You go to COSTCO to have a wide selection of name brands and as a result of that, you end up buying those brands and new things and brands you never even heard of.
So let's use COSTCO as an analogue to TERB. COSTCO's success is driven by the success of their suppliers, and their suppliers success is driven by their presence in COSTCO. This is synergy. When you go to COSTCO to buy toilet paper, you end up buying a new watch, some weird marshmallows and a 5 lb bag of some coffee you have never tried before. And a picnic table. And workbench for your garage you never even realized you needed until you saw it on display. Suppliers fight to get into COSTCO because COSTCO delivers qualified traffic to their products. If TERB can continue to maintain its integrity by providing unbiased access to information, it will grow traffic and advertisers will benefit from more qualified traffic. If TERB is even remotely seen as a shill board or biased towards advertisers, it will lose value and traffic will decrease. Less potential clients for advertisers.
COSTCO has found that the payoff from all those "Free" tastings has increased their traffic and per visit spend. Many people go to COSTCO in part to get "Free" samples and a cheap hot dog. They are not making money on the sale of a hot dog. I suspect they lose money on them as does IKEA. But they are increasing traffic at a very low cost. Same goes for TERB. ALL traffic helps increase the value to advertisers.
When you come to TERB for the purpose of finding a new girl to see, you go to the advertisers section to see who you are attracted to, who is available and any promotions. Then you might go check them out for any reviews. While there, you might find someone else that you might put on your TDL. But one thing is for sure. You will see more girls and spend more money when there is more choice. This is not a zero sum game.
I think you just made a valid point for the advertisers though. You can look at it from both sides............This is a review board and should not discriminate against any reviews or why allow non members to be reviewed and get free exposure at the expense of paid advertisers.
If TERB is going to be concerned with "Free Exposure", then it has started down a path of becoming non-relevant.
If agencies and indies want to increase their business, they simply have to up their game, the standard of girls they hire and consistency of services they provide. Shutting out a few non-advertisers will not increase traffic nor take away customers. Again this is not a zero sum business.
"Zero-sum competition – a competition where one side wins by taking customers away from the other side – is an enemy of sustainability."