Some of it is how they present the info that they have (ie it may not just be google). For ex., I have a friend who dines out quite a bit more than me (and is much more of a foodie) but still is no high roller, works a more than full time job, has a family, etc. And we’ll be talking about a local restaurant and he’ll say “oh, I used to love that place, but they’ve been going downhill lately”. One hears a statement like that, and it seems like the speaker must be dining out frequently, and has eaten there a number of times in the recent past. But when I respond “I haven’t been there recently, and in any case I don’t dine anywhere often enough to know if it’s been going downhill, as opposed to a one-off bad experience,” his response is often along the lines of “well, I have only been once in the last year, but it wasn’t as good as before”.
So he takes his one data point of the year, that it wasn’t as good as in the past, and transforms that into “they’ve been going downhill lately”, making him seem much more hip and worldly. He’s not lying, and he’s not using google, but the way he presents his data gives a different impression than the actual reality. I think there’s a lot of that on CH (and probably here).