I actually agree, I'd be lying if I wouldn't leave a positive review if my spouse or friend wrote a book. Problem is the person above said "Yet FakeSpot [...] is completely wrong." and criticized Fakespot for pointing out the problematic reviews.

They say that everyone is a hero in their own story, and I think that applies here, you have good personal motivations (help a friend/spouse/family, etc) but ultimately what you're doing is no different from the consumer's perspective than the people that do this stuff professionally. It is just as immoral/misleading/dishonest.

They get upset with a service (Fakespot) which points out the bad behavior because it contrasts with their moral motivations for doing so. I think they need to re-examine right and wrong in this situation, Fakespot may not be the bad guy here.