This might be just me, but I find that I’m often confused by the short date notation in posts: the notation of a year (
Mar '15) is visually really close to the notation of a date (
Mar 15). I tend to overlook the apostrophe and assume that a post is one or more years old, making me less interested in it.
My suggestion is to change the years to a full year (
Mar 2017) - making it impossible to confuse the two.