Looking at Black_Dog's website, and realizing the type of photography he does I would say his comments about ISO 800 might be legitimate. But any advice given on a forum should be weighed carefully no matter how well known the photographer may be. Everyone will recommend what they own and enjoy using, not what may be best for a particular individual. They will talk from their own experience. As an example if I asked for wildlife photography advice and didn't know the person giving advice I would check their website. I would give Jonathan Huyer's advice a more weight than Black_Dog's, if I were asking wedding advice I would give Black_Dog the edge.

As for trolls/village idiots it might be good for the forum to have a few join the forum occasionally and stir things up. As it is now there are just a hand full of people that post each day.