Someone with actual professional psychology experience could probably shoot that full of holes.
However, one thing I noticed is that freemium clients are more likely to click on ads and subscribe to your social networks than others. Some pain for some gain I guess.
What do you mean by "an impossible gap?" If it wasn't possible, it wouldn't happen. Even beyond that, "impossible" does not entail great magnitude, but simply something outside the set of possibilities, which could be good or bad.
In other words, You went from A to B without going through any intermediate steps.
Said yet another way: B is a post singularity relative to A.
It's a very tiny jump in energy according to human perception - the interesting part is that the particle is only in state 0 or 1, never "in between".