Apparently, I was sorely misinformed about the ownership of Paypal and Venmo (thanks goes to an ADF Membership Renewal person for correcting me). Turns out that Muck did own it, but gave it up back in 2000-2002.
I try to stay up-to-date on information and to make sure that I'm comprehending it, but I was wrong on this bit of information. My apologies.
I'm accepting Paypal and Venmo again!