It would be great if Whatsrelated links to internal nodes were automatically added the other way around... for example:

- User adds node/1 to whatsrelated node/2
- Whatsrelated notices that it is an internal link and adds node/2 as related to node/1

If modules are related I think it would make sense for the relationship to go both ways. The option would need to have an option to disable it, but I think in most situations it would be a big help. Perhaps a "(autoadded, remove?)" or similar next to "(edit link)" would be a quick fix for most odd situations.