[oneeyedpigeon]

> and hence never see it again

This sounds like it would be a better implementation than 99.9% of the dickovers I encounter. Almost always, I dismiss them, then see them again in future. Sometimes with what feels like every site visit.

[bryanrasmussen]

You see them again in the future because you dismissed them, if you do what they want you to do they will never bother you again in case you changed your mind.