I live in India and barely anyone I know uses reddit. So to see it being 3rd on the list is pretty surprising. Although to be fair, with the population we have, even a small percentage is a big number.
I feel we are underestimating the power of NSFW content. Do you think people would pay to look at Ullu, AltBalaji content? Reddit is money free consumption place for them.
Also, I have a different experience. In the past few years, I have seen a lot of people around who have started using Reddit a lot.