I'm unable to comment about the stability of linked offsets, not being a programmer. But even though LPEs are available now, I don't know of any which either replaces linked offsets, or creates the requested behavior.
With 0.92.2, we do now have Inkscape Preferences > Behavior > Clones > Duplicating original + clones/linked offset > Relink Duplicated Clones
I would like to suggest that there needs to be an option for re-linking duplicated linked offsets (not just for clones, but also for duplicates).
Flash forward from 2008 to 2017.
I'm unable to comment about the stability of linked offsets, not being a programmer. But even though LPEs are available now, I don't know of any which either replaces linked offsets, or creates the requested behavior.
With 0.92.2, we do now have Inkscape Preferences > Behavior > Clones > Duplicating original + clones/linked offset > Relink Duplicated Clones
I would like to suggest that there needs to be an option for re-linking duplicated linked offsets (not just for clones, but also for duplicates).
Thanks.