Holocaust deniers -Ahem, I mean "Holocaust SKEPTICS," are annoying. Someone linked a clickbait about new evidence supporting the holocaust (not that the article wasn't true or about interesting discovery, it was just written like a clickbait) to a Finnish military history group and immediately two of them crawled out with their conspiracy theories.
...And they were the particularly annoying type that claim that you are wrong and your citations faulty but refuse to provide their own or otherwise justify their positions. Much like certain folks here.