Okay, let me try to argue in Moria's favor a bit.
Just like in the KHR thread, no author would say something is being multiplied by a small number like 1,2 and really treat it as a game changing power increase, so it is likely a 2x, Lola said it would multiply his power knowing that most only resist 2-3 shadows, if 2 shadows = 2x then Nighmare Luffy is 100x stronger, if 3 shadows = 2x then he is 66x stronger. If we go by the logic that every shadow adds to Luffy an amount equal to his base stats, 1 shadow would already be a 2x and thus it would end in a 101x, Moria can then be either a 1000x, 660x or 1010x.
Here it is, now i can agree with the multipliers, what about everyone else?