I'm a big-time 'less is more' advocate. Please do not mess with my inputs unless you are making a video game, and even then...
To any designers out there, really ask yourself if you can engineer better scrolling than what is built into our devices already. Maybe 10 years ago you could have and it would be easy, but web browsers on every platform are pretty good right now in terms of handling our inputs.
I would love an HN "AMA" from someone who built one of these monstrosities, to understand how their company processes work/fail, resulting in a work product like this. Doesn't anyone at any point through design/development/deployment speak up and say "Uhh... am I the only one who can see how awful this is?"
To any designers out there, really ask yourself if you can engineer better scrolling than what is built into our devices already. Maybe 10 years ago you could have and it would be easy, but web browsers on every platform are pretty good right now in terms of handling our inputs.