I have no problem referring people to TripAdvisor forums. The Scottish Destination Experts there are very good. They are for the most part locals and give really good advice about the best bus to catch, whether or not the road conditions are bad--the eternal tram problem in Edinburgh--or a good local restaurant. They are not as good at understand the American perspective. That's where we come in.
I've also going to refer people to other guide books. Rick's books are good for what they offer, but if you want to go to the Northwest of Scotland, Rick's guide is not going to help you. The same is true for Germany and other countries. I'm also going to suggest other useful websites.
I don't see the need to bash "ricknics" which sometimes happens. He's helped a lot of people travel to Europe and have enjoyable experience that often goes beyond the most well known sites. If you have places to recommend that are outside his guidebooks, then recommend them. There is no need to point out that they are not ETBD sanctioned locations! :)
To me, while it's now called a forum, it's still the helpline, a place to provide help to people who are planning a trip to somewhere in Europe.
Pam