I have not had one of these complaints in quite a while.

Seems a bit specific to be included as a TN template. I can't imagine the various custom properties that would need to be sorted out to make something like this universally applicable to multiple sites.

You should probably build this yourself in a regular block template or one of the HTML templates and use CSS to position it at the bottom of the page as you'd like. Using jQuery Cookie, which Blox already has available, you could make sure that once dismissed, it didn't come back to annoy your readers for a set period of time.

As long as you can disable a fixed ratio and type in whatever measurements you want, I think that's a good list.