I wanted to do the same with my site and this is what I did:

Set Easysocial dashboard to be your home page.
Edit components\com_easysocial\views\dashboard\view.html.php
Find the line with $my = Foundry::user(); and make it the following:

		$my 		= Foundry::user();



		if( $my->id > 0 )

		{	

                

Important: Add a closing brace "}" at the end of the function.

Now create your article module and logbox modules and in their settings, Exclude them for logged in users.

When a logged out user goes to the home page, they will see your modules but NOT Easysocial because of the line if($my->id > 0) which basically means only show the dashboard to users that have an ID above 0. If they are logged in, they will see the Dashboard.

Hope this helps but I wouldn't recommend it. Easysocial is quite heavy with a lot of resources and not great for a front page.