Oh good point.
Bidders have entered their maximum. The program is incrementing each bidder to be the highest, until they reach their max.
If it only takes $1 to overbid the max amount chosen by Sweetyness, that’s what the program will do.
Whoever controls the program also controls the bidding increments. Minimum increments of $10 or $50 are much better, IMHO. The $1 increments drive me crazy when someone decides “well ok I’ll give another dollar and maybe that will be over the other bidders’ max”.