Hi, it is impossible to identify a problem buyer based solely on a feedback score. Ebay is actively courting new buyers to come to the platform. Without them, the site would not remain viable. Guest accounts also have no history, and could be a long time buyer. The wide majority of buyers are honest, regardless of feedback history. Blocking members with little to no feedback is akin to shooting oneself in the foot.
There are inherent risks to selling online. The best a seller can do to mitigate them is to know eBay policy, be selective of what you sell and in which categories, determine risk tolerance before listing the goods, and have a plan in place on how to handle both shrinkage and returns. A buyer-friendly return policy (to avoid bogus Not As Described cases among other reasons) should not be feared and can be used in the seller’s favor.
You listened to your gut instincts and saved yourself from losing the phone. You can’t ask for a better risk barometer than your own intuition. You should do well here. Wish you much luck in the future.
