Trusting someone for being the real Satoshi might mean unknowingly trusting an entity who might want to destroy what the initial project meant to turn Bitcoin into and allowing a big change that may end up to be the death of Bitcoin as we know it.
Even you trust someone as a real satoshi which he isn't then it wouldn't make any difference. Perhaps some people believe Craig Steven Wright is satoshi but we can't see any effect on bitcoin since this is a false claim. I am sure bitcoin wouldn't ended up this way with false claim. But if we found real satoshi with sign from his address then likely we will encounter huge impact on bitcoin either positive or negative. But still I can't believe it will ended up. Perhaps he is more brilliant than us who have created bitcoin and that's why he know what would happen. I believe he will revealed himself on perfect time.