canadianspankee:
Do viewers not get tired of the same style and soon say to themselves, "the story is always the same, rather boring after a while."
Yes, I think they probably do. And maybe the same happens to us as writers too, after a while? As you said yourself, change or die!
But I wouldn't change just for the sake of attracting readers: this writing lark has to be for our own fun, or it becomes a strain, and our efforts probably decline in quality. Anyway, we have so many different kinds of readers here that for every one who gets bored of your 'thing' there will be new ones just discovering you (on average, about 50 new members join every week).
Meanwhile, as Miss Naughty said, it's natural over time for our 'style' (by which you seem to mean kinds of plot, setting, characters and perspective, as well as manner of writing) to evolve and change slightly as we grow in experience as writers and try new things.
canadianspankee:
There have been lots of comments on writing "a story with a spanking" vs "a spanking with a surrounding story". To me these are two different things entirely and if a writer switches from one to another they are changing styles, are they not?
Well, yes, but they may not be quite as different as you state - and there are stories that are borderline between the two. Furthermore, to switch from one to the other (as you yourself did, very effectively, in 'Family is Everything' recently) doesn't necessarily mean 'changing styles' - the main change is simply in the plot, in that the spankings are not the only or main focus.
Write what you enjoy - ya feel me? - and readers will follow.