Today, they finally responded in their support forum.
A recap: They initially said they would fix the problem by the end of May. They had no more response for five weeks, during which time two other users reported the same problem.
Today, Memeo now says that the problem is that I’m continually modifying a large file.
Attention, Memeo: I wasn’t continually modifying a large file. I never said I was! So where did you get that idea?
And even if I was doing that, how in the name of [insert deity] does that justify LifeAgent sucking up 100% of my CPU, all the time?