Are the restaurants in Khlong San on this list bad?

Not necessarily. They are places where the Google score is at least 0.6 stars above the Wongnai score and the gap is statistically meaningful given both rating counts. Different crowds rate differently; the list shows the disagreement, not a verdict.

Wongnai is Thailand's largest local restaurant review platform, used mostly by Thai diners.

Overrated restaurants in Khlong San? Where Google and Thai diners disagree

3 of the 20 Khlong San restaurants rated on both Google and Wongnai score at least 0.6★ higher on Google, and the gap holds up statistically. Google reviewers are a mix of tourists and residents; Wongnai is Thailand's own platform. Rating counts are shown beside every score. A gap is a reason to look closer, not proof a place is bad.

Khlong San vs the rest of the city

Across the 20 Khlong San restaurants with ratings on both platforms, Google averages 0.37★ higher than Wongnai. The citywide figure is 0.43★ higher, so Khlong San ranks #20 of 22 neighbourhoods for how much more generous Google is than Thai diners (3 restaurants clear the statistical bar for a real split). The median restaurant here has 43% of its text reviews in a foreign language.