First of all... bidding war is NOT called someone who bids 17 rounds.. thats normal ... Bidding war is someting when 3-4 players are bidding till round lets say 40 ... yes 4 and not 2 ...

Second - avatar on that pic is a server problem .. ( I mean grey one) its not a BOT , its normal pic but because server has problem to recognize players it appears like this. It does happen sometimes on my window below the game on PC.

3rd thing - some players are well equiped and they always will be bidding still last last milisecond ... normal, happened to me as well... if you want to scare opposition BID STRAIGHT AFTER NEW ROUND STARTS ... I disgusted few big token players because you are showing you dont mind to be last in the round, you are showing you want that player and you dont care how much tokens you spend ! Thats the attitude