But I don't know if this is a feature that would be of great importance anyway, especially since it's the first time I've heard anything like it suggested. Even if it isn't super important, sure, why not create the feature? Answer: It isn't a community decision, and Theymos ignores some really good suggestions (like having a mobile-friendly version of the forum), so the likelihood of this happening is infinitesimal.
That's the reality, OP.
Alternative to using a profile link, I think one can create a thread in the service board where he will gather all his sales or services thread in a place and bumb when necessary.
I believe Theymos is seeing the forum as a perfect one and may not make further changes till the new forum software is launched.