Sochummy-This seller seems very sketchy to me. They have been selling these same kinds of lots for several years. Also do the math: Selling Forever and high denomination stamps for 50% of face value while offering free priority mail shipping seems highly unlikely it's going to generate a profit, if what they are selling is all genuine. Plus, they also have seller's fees taking out even more of their profits. On the other hand, sell cheap Chinese fakes mixed in with genuine discount postage and their business model starts to make sense.
As for those high value blocks that are sealed in USPS packaging, if the Chinese can make almost perfect copies of USPS stamps how hard would be to slip a fake high value block in some plastic and add a piece of cardboard that imitates USPS packaging? The profit margins on those fake Priority Mail stamps are incredible so they could spend a few cents more and package them up to make them look even more authentic. It would actually be the smart thing to do.
I know some people on this forum probably disagree with my opinion on this matter, but I stand by it: If someone is selling large amounts of Forever or high value stamps on
ebay for deep discounts, they should automatically be assumed they are selling counterfeits. Whether they are guilty of KNOWINGLY selling counterfeits is a different issue, but that seller should still be boycotted until they stop selling the counterfeits.