The plugin cannot center the icons in the widget. That is something I expected, as I think it is basic. That is why I decided not to use your plugin at all.
And yes, I tink it is unethical what you do with the reviews. Your plugin has thousands of 5 star reviews because you push people into giving reviews.
In my opinion it is bullying to call users “TOUGHIE” for not doing whatever it is you ask users (I do not remember exactly what it was and I will not look it up now) before asking them to give AT lEAST a 5 star review.
What you do is not only unethical, it is aggressive. Aggressive in an indirect, alomost subtle way, but still aggressive.