Christy, it means someone gave you one or more negative karma for one or more of your posts. You can check it by going to your User CP and scrolling down to the karma section.
I have purchased from Josh a few times over the years, both before he worked for Outback and had his own business, and now that he does work for Ian. I've never had a single problem with his customer service -- his communication has been great, always answers every question. Nor have I had a problem with his shipping, nor his animals. I have been happy with every transaction. I've e-mailed Josh random questions about various things and he always takes the time to answer, even when it has nothing to do with a sale.
As for the F/T issue -- I don't care if a buyer gives me "their word" that they will buy the animal if I try it on a frozen rodent. I've had people commit to purchase until they are blue in the face (metaphorically) and then back out after having me jump through hoops and waste time for a week. Until a deposit is placed or an animal is paid for, I'm not considering any animal sold or committed. My collection feeds live, and I let every buyer know that up front. I am not wasting an expensive rodent (or two or three) by killing it and freezing it, just to have the animal refuse it. No other snake will eat it, so then it goes in the trash. I don't care if you're a big breeder or small hobbyist. Wasted money is wasted money. If you want an animal that is already feeding on F/T, then find one for sale that is. Otherwise, buy a live feeder and convert it yourself -- especially for those that claim to strictly feed F/T and claim it's such an easy thing to convert them. Sellers guarantee finite things like genetics, gender, etc. Sellers can't guarantee things that fluctuate, like feeding on certain prey, and shouldn't be demanded to or be deemed a "bad seller" if they don't.
Oh, and for the record -- I have 100% positive trader ratings, tons of positive karma, and have been on Fauna for years. I am not Josh, nor affiliated with Outback in any way. Feel free to look me up and see for yourself.