Well, it is fine & dandy that they join CS & help add some variety to the membership, readership & contribution.
However, there should be concern when they start asking for photos when their actual identities have not been verified. I am sure none of the photogs here would want their work to fall into the wrong hands -- even if it was not a paid model shoot (e.g. public even shots). Especially when the problem of leechers is well known.