I'm not sure why this line of reasoning is so prevalent. Someone says "There's strong evidence for A" and the reply is "yes but someone who is not currently in the conversation also said there was strong evidence for B and that is wrong! Therefore you are silly for believing in A!" What? We're not supposed to be optimistic when we see strong evidence for a breakthrough in a phenomenon we already knew existed, because someone else believes something else!? Because some other person believes in ghosts and psychic powers, no one is allowed to believe anything? These are different people making different claims! It's insanity.