AEM 6.1 + Adobe Social - Comment component

Hi ,

We are using AEM 6.1 + Adobe Social and not maintaining users in AEM repository

Now we are implementing comment component  to post comments via ASRP to adobe social 

1) Is there a way to POST comment into Adobe Social without maintaining user nodes in AEM.without any involvement of jcr session?

2) Is there any direct Adobe Social API that can help posting into Adobe social directly without using SCF like loading users info from client context and POST via AJAX and fetch comment back from Adobe Social?

3) We do not have any forum the use case and ours is more about end user posting comment and moderated in Adobe Social.