Feature request: browse by first tag

I'm asking for a feature that allows one to browse posts only by the first tag they used. The first tag is sort of the "prime" tag; it is the one that shows up by the author's name: "2 hours ago neoxian in steemit". This tag tends to be the most relevant to the post (usually), and if the poster sprinkles all kinds of other tags at the end, it won't show up when browsing this way. Hopefully this could minimize the effects of tag abuse. Thanks for reading!