Is it bad form, if you create a QotD, to list your own article as a reference?
If it's a good article? No, not at all. I've done it in the past.
That being said, I do always prefer an official MS reference. But if there isn't one, a third-party reference that is solid enough (read: based on other MS material, or equipped with enough code samples to prove that the statements are true) will do just fine.
I don't know your article, but I do know you - and that's enough for me to assume that your article will meet the bar. Easily!
Hugo Kornelis, SQL Server/Data Platform MVP (2006-2016)
Visit my SQL Server blog: http://sqlblog.com/blogs/hugo_kornelis