Haven't had any problems with it thus far. I guess that means I'm doing OK. :)
The only one of my Hubs that has changed from "black H" to "blue H" (i.e. "not featured due to engagement") is a seasonal hub about Christmas lighting, and I don't see much point in tweaking that one right now to try and bring it back to life since it's only the end of May.
I think I'd be more worried if I wrote poetry because I sincerely doubt an automated system is able to tell "good" poetry from bad.