You make it sound as if there's something wrong with that? As you point out, it's obvious none of the claims are supported by evidence, and there is no appeal

You make it sound as if there's something wrong with that? As you point out, it's obvious none of the claims are supported by evidence, and there is no appeal to authority ("this is who I am"), which qualifies this as an opinion, and should be taken as such. Which means that any reasonable person should, before they make their own opinion, look for evidence for or contradictions to the posted opinion, and use that to make a more informed opinion. Now, the fact that a majority of internet readers are not reasonable is where we should be worried, not about someone sharing their opinion in a modern day bar. (Interestingly, the fact that those same people never thought to critically look at "official" news on TV/newspapers is a symptom of the same problem before the internet.)