If anyone is after fake 5 star reviews, are they really so primitive as to use exactly the same wording for every fake review? Not even swapping out the odd adj

If anyone is after fake 5 star reviews, are they really so primitive as to use exactly the same wording for every fake review? Not even swapping out the odd adjective or tweaking the grammar? It seems to just make it totally trivial to remove, making the whole effort worthless. Of course, maybe they are changing the wording and just that particular case has come up more than usual for some reason...