Matt, you say that you've had no other reports and this is the only claim on the Internet.
That's not true. You have users on the support forums reporting issues with SCF.
"this has caused an incident requiring unschedule maintenance on a weekend. I use this plugin on a couple hundred sites I help maintain, so this has been a very bad experience "
The complaint says Matt has been lying to the IRS and self-dealing. Is this a legal maneuver by Rachel Kassabian to have Matt lose the WordPress trademark?