depends on the trustworthiness of the source. at some point we have to trust something; could be our own selection process, but it can very well be the opinion

depends on the trustworthiness of the source. at some point we have to trust something; could be our own selection process, but it can very well be the opinion of someone who you follow that seem genuine over X amount of time. The false positives are probably a necessary evil, humans will make mistakes, miss sarcasm, etc.