The combined interest of both threads and Resources creates quite a long list - I have 4 pages of Resource links so far and over 50 pages of threads!
[EDIT] I already solemnly followed a thread over several pages as we all discussed the need for a certain feature ... only for Martok to blessedly post the link to an addon AND I discovered I was already Watching it!
To make it useful Favourites need categorisation.
I'm not sure if division into threads, posts, and Resources, really matters to the user. What really matters as always is CONTENT - whether the solution I want is an addon, a template change, a tutorial, a Style or an external link is not of such great interest as the topic area.
But there may be limitations on such a 'miscellaneous' approach pooling all favourites, as I know searches seem to search one type or another.
We might perhaps have virtual folders or tags such as
Snippets (Code snippets given in posts or Resources)
Just Watching (for the rest not selected for the above)
and others similar to those used for Resources.
If we had default categories it might be good to have ability to Hide some if the list was more than half a dozen.
Or else ability to create our own categories.