Hi Yesterday I notice that My estimate people reached decrease by 30k ,
Is there any change that does this ??
There is no reputation change(decrease) in my reputation tab, but still I am wondering why its decrease by 30k
Probably the same as described here: What happened to the other people? My Impact (people reached) just dropped
So in the first few days after posting your answer, its score was enough to satisfy the last condition above (Has at least 20% of the total vote count) but as new answers were posted there with more and more votes, you lost the impact.