As I understand the standard, any event, person, source, etc, should be taggable with RESN. In FH it seems limited and arbitrary what can be tagged. Also, it's tucked away as an 'LDS' option (well, isn't the whole Gedcom standard an 'LDS option'!!
Also, currently seems that one can only tag as 'locked' or 'private'. This is also arbitrary - I'd like to be able to define my own tag value (e.g. a source cross-reference, the word 'confidential', etc)
Privacy is becoming more and more important as more of us share and post info to the web. RESN should not be seen as obscure, but should be easily available.
Sean
ID:1466