Auto subscribe new users to Newsletters

Simplenews is a powerful yet simple newsletter module which allows both anonymous as well as registered users to subscribe to different newsletters.

Users have to subscribe to the newsletters and many novoice users
dont know how to subscribe. As a result for small sites the newsletter subscription is very low.

There is a need to auto subscribe users to Newsletters & later they can choose to unsubscribe.

SimpleNews module needs to be hacked either via

SQL script
Code modification.