Sorry, but it is not possible to turn this off currently but why would you want to do that as it would block off all collaboration efforts on the site

HI Mark,
I don't want to block collaborative efforts in the site, may be I should phrase it well.
My aim is not to allow users to see the list of users in a single page (as attached). List can be seen from different sources from ES, EB and ED. As having such lists could lead to spams and distrust. Therefore, I want to limit such list.

I see, unfortunately there is no way to disable this right now but if you want, you can hack the file /components/com_easysocial/views/users/view.html.php and add the block of codes below at line 35

[gist]
$this->app->redirect('/');
[/gist]

Thanks Mark.
I tried one link from ED so it got redirected to frontpage so the code seems working.
I am unable to disable Suggestions (friends suggestions) in my website, that is another source to find members list. I tried to do it from Friends app, and deleted cache but still they appear. how can I disable them.

http:YourWebsite/index.php/friends/suggest

Not really sure what do you mean here. Can you provide me with a screen shot?