Loss Of Limbs - Tumblr Posts

I find it curious that in a lot of Always-a-Sith!Anakin fanfics Vaderkin loses (or has already lost) an arm. Not a problem, but something I’ve noticed and I don’t fully understand the reasoning behind the choice to keep that part of canon?

Anakin loses his arm in AotC because George Lucas wanted to show that he was beginning his path toward the Dark Side, or so I’ve heard. Also, Anakin loses his arm as a reckless Jedi Padawan while fighting a Sith. No way would Darth Sidious have allowed his apprentice to be so reckless as to lose an arm due to overconfidence and anger.

Quite a few of the Sith!Anakins end up being redeemed and turn to the Light, so the symbolism doesn’t really make sense to me.

Edit: @thejusticelegacy gives a good explanation for keeping the robotic arm in their reblogging of this post.