No, I do not believe that it should be added back.
Don't get me wrong - Once I heard it was legal, I used it just as much as the next guy when I played, and to be honest, I liked it.
However, in the future Bukkit updates, the fence glitch will not be implemented again. That means that the Developers will have to find or code a new plugin that specifically has the fence glitch. That only adds more work onto their already busy schedule, and another addon to the server files, which takes up more space and RAM, making the servers slightly laggier, more often.
It is not a Vanilla Minecraft technique, and it is not something that would add a Hunger-Games feel to the servers. In fact, it would help people be hungry less often - literally!
The glitch was not supposed to exist originally, and Bukkit patched what was not supposed to be there.