Caltrade; "You can find a link to my site on my profile here."

Let me mention this since you noted it; this is something I've been wondering about for a while now.

http://www.boonex.com/unity/txt/rules -> says: "Your profile details cannot include URLs or other forms of advertising."

Is this an old and outdated rule that is no longer expected to be followed? I personally think it only harms the level of networking among users. Perhaps users with a certain level of see more member score, like 50+ or whatever that would establish a track record of sorts, could have separate profile fields for their websites and blogs, and perhaps even with an actual clickable link without "ref=nofollow", as a reward for their contribution to the community. Would seem fair enough for all.