I feel that reddit has enough data to effectively target ads. If I subscribe to /r/cars, chances are I like cars (if I make a post asking "What is the best car to buy for $X?" I'm probably in the market for a new car). If I post in a city subreddit, chances are I live there. If I post in /r/programming, I'm probably a programmer. There are also third-party analyzers that can take a reddit user's data and give a pretty good guess of their demographics based on their public post history as well.

I feel that if someone were to target ads to me based on the subreddits that I subscribe to, they'd be far more relevant to my interests than Facebook ads. Facebook shows me clickbait spam that my friends liked; I almost never see any interesting ads there. Reddit certainly has more advertiser friendly information than Snap does. On Snapchat, you share photos with your friends and Snap knows nothing about you other than your location. Reddit on the other hand has confirmed interests.