The Mysterious Mare Do Well was actually an enjoyable episode for me.
I like the EQG Movies.(Rainbow Rocks being the best one, and Legend of Everfree being a bit more boring for me compared to the other 3)
I hear about a few people who don't watch the show anymore, but I am still actively interested in the show and it's upcoming 7th Season.
I also think the show's quality hasn't dimished, because there are still some really great episodes in Season 6. Like The Gift of the Maud Pie, Gauntlet of Fire, No Second Prances, A Hearth's Warming Tail, The Saddle Row Review, Stranger than Fanfiction, 28 Pranks Later, The Times they are a Changeling, Every Little Thing She Does, Top Bolt, and To Where and Back again (Parts 1 and 2)
I adore Starlight Glimmer as a villain but I still love her where she is now.