Board Thread:Theories and Speculation/@comment-35172651-20180401134411/@comment-734582-20180405134721

BigVibber wrote: Ok just add sasuke to the list of people that could have figured out that tobi/obito/pseudo madara has a sharingan similar in aspects to kakashi's. Problem solved and plot analysis completed Or, it doesn't work the way you think it works. Obito was able to hide from sensors of all sorts. Only Itachi noticed him. that indicates he can hide his chakra well. Indicating it's not as simple as just seeing chakra color. After all, if it were as simple as seeing chakra color, why was an entire clan of color-seeing individuals unable to notice someone sneaking on their premise?

We've seen that people like Karin can extinguish their chakra signature to hide from sensors. If Obito was able to hide from sensors, then that indicates he can too.

So in the end, i think the idea is thoroughly debunked and it's not a plot hole.