User blog comment:Care Level/Concept Kits/@comment-7782501-20130925090548/@comment-9593635-20130926001644

The point of "ends on spell use" is to, well, encourage spell use, which you can punish with the rest of your kit. If you drop E on them, you can follow up with a Q or W: if they use a skill, they get punished; if they don't, they take E's full damage.

In the second kit, R does, indeed, remove all Qs; they don't just sit around afterward since they are "triggered", so to speak.