Is Luffy's Devil Fruit Weak. The Gomu Gomu no Mi is a Paramecia-type Devil Fruit that gives the users body the properties of rubber making the user a Rubber Human. As seen at Enies Lobby if the users head is caught by their opponent they are basically done for.
Luffys childish nature allows him to think of some truly childish ridiculous but ultimately useful techniques with his rubber powers. He doesnt have a devil fruit and he is around the level of gear 4th or something now imagine luffy without his devil fruit. Although the Devil Fruit appears average at best the way Luffy utilizes it makes it one of the strongest in the series.
In this manner Will Luffy eat a second Devil Fruit.
Overall luffy has a top 5 devil fruit in the series IMO but only if eaten by someone who is already strong. So according to me it might affect as long as devil fruit users are physically touching them. Yes definitely thats odas narrative too. One of fans asked Oda why he give Luffy Devil Fruits weakest power how rubber and Oda answered that.