Go to the popular third-party apps that are getting killed and scroll past the RIP messages for latest reviews and you will see a lot of one word 5-star reviews. Are those suspicious as well? No, that's just what people do.
Admittedly I included reviews like "Great app" and "Good. " but if we're strictly going on one word only:
"Awesome."
""
"Great!"
"Perfect"
"Works"
"Great"
"Perfect"
""
Not sure why that's a requirement though. Isn't the point that the reviews are low effort or is one word exactly indicative of something? If I bought fake reviews I would expect a tiny bit higher standard than that.
Edit: HN stripping emojis but they were thumb ups.
https://play.google.com/store/apps/details?id=com.andrewshu....
https://play.google.com/store/apps/details?id=com.laurenceda...
I think it's frivolous that people in that thread (and here) take this at face value.