In detail: Why should I pay for someone redirected ramdomly to my site when visiting another homepage? Why would a visitor of startuptwister want to be rediected randomly? Why the need for Ethereum?
Seems to me as an overcomplicated, weird solution to a discovery problem that is much better handled without the "random" factor.
Further more, registering your page on startuptwister, you contribute to the popularity of your site and all others listed, there. It will provide some network effect, if it is used frequently.
Doing it on Ethereum has the advantage that you don't have to provide your credit card details, and that we don't have to integrate Paypal, Stripe, etc. Also, an auction system implemented in a classical way would be much more complicated.