Watch topic using email address without requiring registration

[merefield (Robert)]

@alangibson

I’m thinking an elegant way would be to have a theme component that would display a ‘get notified by email’ box above the timeline in the right hand bar. The user could simply enter their email and click ‘Watch’ to get notifications on new posts to the topic.

No Theme Component could achieve that, it would require back end changes only possible in the core product or a Plugin.

By giving you their email, they are in any case not just a reader, so why not just make them a Trust Level 0 User and get them to use the existing logic to register and watch the Topic?