I see on some Lion Profiles folks can leave comments for
the Lion. What if a Lion doesn't want public comments left?

The presence of Lion Comments function is solely under the control of the Lion. If a Lion doesn't want comments posted that others can read, he or she can simply deactivate the Comments feature at the bottom of the Edit Profile page.

Let's cover a bit more about Edit Profile page. Here is a print screen of the last section you'll see when you select to "Edit Profile" under your "Member Functions" menu heading:

     a. Profile Visibility:
This one is VERY IMPORTANT. IF you leave it unmarked, everyone in the world who does a search on your name can read your profile and select to send you emails. We've had this happen to some folks - NOT GOOD! The description sounds a bit "friendly" .... allow the public (friends, co-workers, family members, etc... unfortunately, its the etc that concerns me.....). PLEASE keep this marked. Thanks!

     b. Birthday:
As you can see on the description, IF you want your birthday to display on the Home Page - you'll need to mark it. Now this doesn't manage the Profile Subscriptions Birthday Notifications ... You will see/receive notices for other folks' birthdays but not your own.

    c. Lion Comments: (covered in paragraph 3. above)

    d. Instant Messages:
Self-Explantatory. (I am interested in knowing if any Lion uses the "Instant Messages"? Thanks!)