To give you an example: there is no reddit equivalent in French. The closest things we have are a few French-speaking subreddits that have very few subscribers since reddit scares people who don't speak English before they can reach the French-speaking subreddits. We also have a few very poor quality reddit rip-offs with no users.
Granted, the French-speaking world is not as big as the US market. But 100 million people is already a decent target, don't you think?