Is GStringChunk still useful?

[Matthew Barnes <mbarnes redhat com>]

There has been some recent discussion in evolution-hackers over the
value of GStringChunk in GLib.  Jeff provided a pretty good analysis of
its pitfalls [1], leaving me to wonder whether its continued use is
still encouraged.

I'm posting to this list hoping to get comments from a broader audience.
Is this a data-structure that is generally shunned, and can anything be
done to improve it?  Should some kind of disclaimer about when and how
best to use it be added to the documentation?

[1]
http://mail.gnome.org/archives/evolution-hackers/2006-November/msg00003.html

Matthew Barnes