the profile should only be robots-indexed or even shown in details if the member has a public resource

One of the usages of Curriki for spamming is that of creating an account with a fairly public visibility policy and the display of URLs to spammy places.

To avoid this we propose to reduce the display of the members' profile to the bare minimum if querying from a non-logged-in account if the member has not publicly viewable contributions. Moreover, the sitemap should not include these users.