Steward is still my favourite card in the game.
Want to write an article? 
Not sure if serious.
Urk, if I had known Steward was missing an article back when I was on the top of my game I might have thought more about it. I'm still not sure I would have been motivated to do so.
See, I remember reading from someone that articles are useful when they discuss strategy considerations that are not immediately apparent from preliminary analysis of the card. They should also not be afraid to make bold claims concerning the topic in question and be clear on how to best use the card in question for card articles. Like, the AI/SCSN Rebuild Mirror article is saying something specific about Rebuild. When I wrote an article on Graverobber, I wanted to make claims that were as specific as possible that I am confident about. I flat out believe trashing Action cards for other Action cards with Graverobber is a poor strategy in itself. You do that when you want to get rid of stuff that has outlived their usefulness like an early Chapel or hey, even a Steward. You shouldn't think "Okay, gain Great Halls with Ironworks, use Graverobber to trash GH into Grand Market. Boom, that's my strategy!" Sorry, Grand Market isn't that great if you're not pairing it up with good trashing or aren't gaining them faster than that, assuming you're lucky enough to pair GH with Graverobber early on at all.
But now, if I wanted to write about Steward, I would want to be able to tell you all that you should open double Steward under circumstances W, X, Y, etc. However, I don't have enough experience to be confident about my knowledge of Steward to want to make such claims. Man, I just feel like Steward does it all for you, staying relevant for the entire game regardless of what deck you're going for. Some people feel like Watchtower is their personal swiss army knife, well for me Steward is my personal swiss army knife. I have similar expectations for Amulet actually.
I think, like you, my hope with these cards of the week threads is to gather tidbits of insight from a whole bunch of players that together paint a good picture as to how the featured card should best be used.