What you are asking about is integration between SR and third party extensions - such as forums, social components and user communities. That integration is already on the wish list, aka request list.
The list is at the top of the request forum as it is stickied but you can view it here:
The request list is exactly that -requests, not demands, and not a feature tracker. As the developer has time to work on this component and wants to know how he can improve the component for the community the list provides ideas or suggestions. Features and requests are not necessarily worked on in the order of the list.
Integration with other databases is currently in Priority 5 because it is not 'needed' as much as other requests and because it is a lot of work. However, you may like to know that the developer believes integration is tied directly to user reviews and that both are towards the top of the list of features to come next.
Please be patient as there is only 1 developer and he is operating on no income for this project. SR is free and work is done when possible - not on a schedule.