I'm yet to come across a misleading review in a LP in 20 years. I've seen reviews I didn't agree with or experience (particularly at restaurants/cafés - which couldn't be more subjective), but never misleading.
With TA, it's anonymous and therefore easy to manipulate the online perception of the subject.
I just happen to have a German hotelier staying at my house. She says that she spends a great deal of time dealing with vexatious and, in her opinion unjustified, complaints, often directly with TA. People write any old tosh (good and bad) in the hope of an upgrade or free brekky offer. I recall a facebook post by a Sunshine Coast restaurateur a while ago pleading with the public not to believe the negative TA reviews being submitted by a customer who ate a meal and then complained and threatened to post bad TA reviews if a refund wasn't given. And didn't I read somewhere that people were getting paid to write reviews - both positive and negative?
All it takes is 10 "people" to say the same thing and you're a believer. I guess I'm waaaayyyyy more sceptical.