So patrons will now be responsible for covering the Stripe fees, and Patreon is still taking an additional 5% for their services.

The Stripe fees were previously taken out of the creators' portion, so it made a big difference to a creator whether they had one patron for $100/month or 100 patrons for $1/month. But that was hidden from patrons, who could easily and happily pledge $1 to a dozen creators.

Can I now pledge 63 cents, so that the cost to me is $1?

Also, I'd be shocked if me pledging $1 to a dozen creators resulted in a dozen Stripe charges. Clearly Patreon should run those charge once, so my $12 costs only 70 cents from Stripe.