The road forum is generally very friendly unless someone posts something really arrogant. For the most part, the dominant members are very accommodating and encouraging. I never felt out of place when I was posting while riding a comfort bike, it's more about style of riding really. Otherwise, commuting forum may be a good place, since that style is often used by commuters, and is also pretty friendly. Read around a bit and see, most people don't use just one forum.
"It hurts so good..."