TL;DR: Enterprising consumers are using the free money they get for signing up to use online gambling apps to make multiple matching (e.g., opposing) bets on di

TL;DR: Enterprising consumers are using the free money they get for signing up to use online gambling apps to make multiple matching (e.g., opposing) bets on different gambling apps, and keeping the net winnings. It appears some consumers are using multiple email addresses and proxies (e.g., relatives) to sign up. The makers of these online gambling apps may be aware, but they're probably looking the other way because they want to show rapid user growth, profitable or not.