Gild Tesoro

I know its just a filler but I don't understand why Bill was afraid of Gild Tesoro. Bill could probably melt gold with his devil fruit (Gutsu Gutsu no Mi), and Bill is literally an Blast Furnace Human, so the gold dust attack that Tesoro used on Zoro probably wouldn't have worked either.

People always speculating what luffy's devil fruit awakening will be like. Personally I think it'll be different than just turning surroundings into rubber like doffy strings since his fruit affects his body directly. Tesoro also had a different type of awakening from doffy and katakuri btw. But luffy not the only straw hat with a devil fruit so my question to the community is what do y'all think the others awakening would be like. Choppers we can more or less guess since it appears that awakened zoans share the same effect but IMO I think he'll probably just be able to access his monster form with no drawbacks for as long as he wants. Brook I have no earthly idea on but if robin could turn her surroundings into clones of herself that would be badass