Originally Posted by
FBinNY
As they say "the proof of the pudding is in the eating". You had a bent hanger and you straightened it. Now the shifting is as good or better than ever, so what's to fix?
I agree with FB. If it works, it works. Good job on eye-balling the alignment too.
The derailleur itself should be fine. The hanger in theory will snap before the derailleur gives way. It's not like you're using the derailleur as a lever every day. So I would rest easy on that front.
Worst case is that you've induced some weakness into your hanger from the initial bend followed by the unbend. That's no different than if you had used a hanger alignment tool.
FB is correct about the inside limit. Worth double checking that one. You don't want the chain falling over into the spokes.