I know a AdSense Plugin already exist (nodebb-plugin-google-adsense). But it is not compatible with 0.7.x and the developer does not update it. So if someone could make a new one or update the existing one - that would be nice.
Don't ever apologies for providing advice, that after all is why we are all here 👍 and the great thing about advice is that the user can choose what to do with it. In this case I shall be applying it to the letter.