I have given up reading them. There are always so many conflicting statements - e.g. hotels "Good breakfast selection" vs "Poor breakfast buffet" and "Friendly staff" vs "Unfriendly staff". Often they complain about things that wouldn't bother me.
So I just base my decisions on verifiable facts: Parking included/in house?, Location, size of room, facilities provided, 24h reception etc. On Amazon or similar, I just go by things I need to know such as wattage, size, material. With books on Amazon I can look at a sample on my Kindle before ordering if I'm in doubt.
The ones full of spelling and typing errors are awful to read, but it's very unlikely that they're faked!