I honestly look at automatic buying blocks as a selling hindrance.

ie if you have your blocks set at 2 npb strikes or more you are inhibiting buyers that

bought, paid and received 97 items from other sellers but didnt pay for 3 items

bought,  paid and received 96 items from other sellers but didnt pay for 4 items

and so on

But when you could have no blocks, you can use the unpaid item assistant automatically and have a set policy  to issue

blocks and receive a final fee refund for propective buyers that did not follow through with their commitment to

purchase your item.

How many signs do you see outside of bricks and mortar stores stating that because you did not pay for a hurdy gurdy

you ordered at another store up the street you cannot purchase the gizmo's I have in my window either?