I have been a member of Railforums UK for almost 10 years. I contribute a reasonable amount. Post count of course is not everything but I am now at over 6000 posts. Moderators do a great job of keeping stuff on topic and splitting off posts onto a new thread where necessary. I personally prefer the Infrastructure section though I do post in other areas also. Some extremely knowledgeable people on this site and some in particular I follow very carefully. Living in the USA I find photographs of progress really good and helpful. As with any website-internet forum it is best imho not to take things too personally. I personally can thoroughly recommend the forum. One of these days I will get to a forum meet/ meal but in the meantime I have met a few members on photographic trips.