If you think by not registering a Facebook account and not having a website you will be save from online review. Think again, because Internet connection are become necessaries of life and now mobile phone also have Facebook.
So the moment a guest enter the hotel room they can immediately tweet how many bed bugs found or they just can snap the toilet picture and upload it to the social media network. Then tag and tag and tag..and tag and tag..
As a result, your remote guest house suddenly become popular overnight. And if you are lucky some guys from tabloid eager for hot local stories copy it from social media and make it into printing.
My opinion is online travelers review can make an impact. PhoCusWright have a report about Online traveler review volume continues to grow here.