Lol it's only like 0.0000000252 every hour would take me a month 24 h/r 7 days a week to make 3 bucks. It's because I also have school work and don't want to sit around clicking a button everyday.
You could make the bot more efficient by having it send $3 worth of BTC to a non-existent address immediately. This would save you waiting a month while it loses tiny amounts of money that add up to $3.