It used to be three strikes and you were out. I'm not sure what the time frame was for those 3 strikes but ebay used to either suspend or remove buyers with 3 strikes.
Later it changed to too many in a short period of time (ebay never specified how many was too many nor the time period but my guess is at least 3 in a 30 day period).
Now I have no idea how many strikes a buyer needs to get in order to get suspended. However, I do know that most sellers set their buyer requirements to block bidders with 2 or more strikes in the past 12 month. This prevents habitual non payers for bidding or buying items from that seller.
**********************************************************************************
Non payers should get unpaid item strikes and be added to block bidders lists. Period.
