It's not a bad approach, but I wonder if the talks oriented toward novices who may be new to Python/Django or programming in general are willing to sign up for

It's not a bad approach, but I wonder if the talks oriented toward novices who may be new to Python/Django or programming in general are willing to sign up for a GitHub account (or even know what it is) to vote. Maybe this should be taken into consideration as these vote totals will probably trend lower than other talks.