You could also consider, that the
SEO value actually comes from other members of the forum.
In the case of WPW there is always a little bit of insight to be gleaned from other members. selecting strategies for
SEO, SEM, or whatever is far easier if there is a constant bombardment of fresh thoughts entering your awareness.
In the case of WPW, I do not know the value of the link. . But I do know WPW has at least four members that own classic cars.
Value is where you find it.