More often than not I have a great experience in restaurants with 2-3 out of 5 in ratings, and shit experiences with restaurants with 4-5/5 ratings, I've simply stopped reading reviews at all, anything with numbers on the internet is basically fuddled with nowadays.
This is the way. If I'm traveling I consider Tripadvisor's top lists as things to avoid, and don't use the site otherwise. Bangkok in particular, you can basically walk blindfolded and you'll run into amazing food.