I forgot this bit:
(In what follows, "it" refers to "universal common descent")
"Lateral tranfers of information (which occur in bacteria) are consistent with it."
Nope, Lateral gene transfer is NOT consistent with it.
Well, Wikipedia has an article on lateral gene transfer. Lateral gene transfers are a known reality. This poster says they are inconsistent with universal common descent. Logically, that would mean that universal common descent is false.
In all likelihood, he probably meant to claim that lateral gene transfer among macroscopic life forms is inconsistent with universal common descent. Of course, that's not true either. That is just taking something we believe not to occur and declaring it a "potential falsifier" for that which is intrinsicly untestable.