I know the rules as 80-20
, people satisfied by your work does not care about you having bad reviews ..from his point of view he is satisfied with your work ..if he misses something that he want then he goes to review and comment your app.
True is that you expect more reviews you must add option to rate app or ask from time to time ... people often rate app to get rid of this message .
People rate bad as a relief of his understanding the app .. and say ok I am mad because I do not understand how this works ..but now a fell much more better as I rated 1 star ...
I am not worried about 1 star rating ... its true that your average will drop but take this exaple
50 - rated 5 stars
40 rated 4 stars
5 rated 2 stars
20 rated 1 star
When I look at this rating then I should say to myself ... there is something good in this app but are users that are not understanding how to use it .
When I want to give a bad review I never hit 1 star .. but 2,3 stars I consider to be worst enemy