In defense of the claim for bets, I just ran with a test account on the site (betting their "lucky" token with the lowest possible wager for 49.5% win rate) and the auto-betting at max acceleration was roughly 5 bets per second.

That's about equivalent to about 155 users running on auto. It's certainly not what I would expect in terms of traffic for the site but not outrageously far-fetched.

Add in. too, the surge in traffic that comes whenever they run their giveaways.