If you do let people change it then annotate it with (edited) so people can perform their own heuristics, if 10% of 5 stars were edited then it’s a bit suspect.

If you do let people change it then annotate it with (edited) so people can perform their own heuristics, if 10% of 5 stars were edited then it’s a bit suspect. Or keep the history of the reviews - it doesn’t take much to spot check and if platform users can do this on an individual basis then obviously the platform could do this algorithmically. They’ve just made the conscious decision not to.