I've got that e-mail too and I like that new system is more transparent.
I don't think you are calculating it correctly. We will get exactly 95% of every pledge.. For example ..we'll get $9.5 with your $10 pledge. That pledge has some transaction costs, you will be charged $10.64 (2.9% + fixed fee $0.35).
So it is actually more predictable than in past. I'd happily pay 5% for aggregating and easy management of small donations. For example we can issue one invoice to our Tax Office per month instead of many bills for each small donation. We can also synchronize our supporters through programmable interface. It has great features that make my life as admin easier.
Sorry we don't have paypal, but if you can use bitcoin then absolutely do it! You are welcome.
But Patreon is prefered, cause we can have steady support throughout the year.
Thanks a lot !