@dreev, founder of Beeminder, said that Manifold's new pricing scheme for mana is deceptive due to using .99 amounts to make their products seem slightly cheaper. Here's his blog post about it.

Will Manifold change them all to whole, round numbers in the next 30 days, or will they be kept at .99 cents?

I will define "whole, round number" pricing to be pricing where the cent position is either .00 or .50

Changes have to apply for all prices to resolve YES.