They will lose more money if they don't wipe... They have already made some money till now but everyday less and less people spend money on a corrupted game full of bugs. Solution --- When bugs are fixed. Wipe. There might be some crying but it's the only solution. Otherwise no future for this game.
YES!!! Duels are very important. It is something serious, that this game lacks. They can also impement 1 v 1 arena tournament with rewards... Would be fun.