I hate to be the negative nelly, but I really wish tags like that won't be made canonical. There has been talk about adding a filter that you can use to hide just non-canonical tags (instead of all additional tags, like you can do now), and making non-informative tags canonical will completely defeat the purpose of that feature.

I have nothing against people using Tumblr-like tags, but I would like the option to filter them out because to me as a reader, they are nothing but visual clutter (and, as I realised after having an eye operation last year, a serious accessibility issue).