You could put your build on a blog and then link to it from anywhere. There’s less interaction, but you only need to document it once. I was half way into a rebuild thread on one forum when the forum went belly up – all the posts and threads locked up and couldn’t be updated or modified. WordPress and Blogger are free and are pretty easy to use. Also, some forums only show pictures to members that are signed in, making it difficult to share your build with family, friends and other non-forum people.