I just added a mod to the site to set user profiles as private if the user's age is under the age of 13 years and the viewer is not already a friend. So if you would like your profile to visible only to your QSTswap friends, just set your age to be under 13 years. I'm sure some of us were born yesterday.

Also, by default, profiles do not show in the browse users list if under age 18 or over age 75- I may change that soon, especially the upper limits.Any other suggestions?