Originally I did some statistics of this stuff when this thread had around 84~ or so comments, and considering that it has almost doubled, I figured I might as well make and update a list instead of constantly making a new post.
19 years old, been playing since naxx. I've never been above rank 7 nor have I ever really tried to reach high ranks. I mainly enjoy collecting cards and memeing in low ranks occasionally being lucky enough to get rank 10 with some dumb deck.
19 also here and I literally could have said the same thing. Highest rank is 9, played since BRM and meme decks.