Don't worry; if that Simple Texts Project ever picks up, we'll all have a nice and shiny new reference to look at to help us with our problems.
I'm sure at least part of the problem is people not knowing what happens when in a card effect (what's the Cost, what's the effect, what happens last?), and that's due to poor wording (because we can't expect the players to have played the game for years and tried to properly learn all the cards - no one's ever managed that, incidentally).
The other part is not being sure how exactly the different effect types work, and which effects are which type. The definitions should be included in the game mechanics, but those particular ones aren't easily available to newer players (because they're supposedly "advanced" rules that people just never get round to learning).