That's interesting and I have no doubt it works. However, I think that you might simply get used to the pressure and start procrastinating either on the service

That's interesting and I have no doubt it works. However, I think that you might simply get used to the pressure and start procrastinating either on the service itself or simply procrastinating using in the service. The other problem is that any kind of outside force that pushes you to work harder also creates stress. This stress isn't entirely regulated by yourself and it's possible for it to backfire.