79 sales over several years is not a sales record which is likely to have earned the trust of Ebay.
Among the types of safety measures which apply to new and infrequent sellers are limits on numbers of listings or value of your listings.
You might try experimenting with listing fewer of lower priced items to see if you are able to increase your revenue by using the listings for higher priced items, or see if you can increase your sales and revenues by offering a different selection of what you own in inventory.
Having only positive feedback is irrelevant when grading the performance of US sellers. Pointing out your positive FB is an indication that you have not yet learned how Ebay rates your performance as a seller. Some reading in the Ebay help files would enlighten you.
