Ditto what Jules Jones says. Among other things, I write DS fiction -
only DS, no pain or corporal punishment - so no, I don't assume that a BDSM novel will involve pain or rough sex. In fact, I don't even assume it will involve sex.

And as a reader, I prefer DS fiction to bondage fiction or SM fiction.
But I also assume that most BDSM novels will involve heavy pain. It sounds to me as though the reviewer was simply expressing their personal preference, which I, personally, would want to know as an author. I mean, if I'm writing about World War II, and the reviewer finds all wars after the Civil War to be boring, I'd like to know that so that I can take their remarks into account accordingly.
Now, if I were a reviewer, I'd recuse myself if I found myself reading a genre (heavy BDSM fiction) that I didn't enjoy. But that's just me.
Veinglory wrote:
"It seem like a lot of what is in erotic romance is so light as BDSM it almost doesn't count--not real lifestyle stuff"
*Ahem* - I trust that you're not saying that nobody does light BDSM in real lifestyles?
I know what type of "flirting with radical without actually being radical" fiction you're condemning, but let's not get that mixed up with the issue of whether "real" or "heavy" always involves pain. I can imagine a BDSM couple who had no corporal punishment, no bondage, no SM - but they were a 24/7 master and slave to one another. How light is that?
pepperland wrote:
"But inherent in BDSM is sadomasochism."
The term BDSM arose as a collection of three abbreviations: BD, DS, and SM. These days, quite a few people leave out the DS when they think of BDSM, so there's a possibility for confusion.
I think what this thread reveals is that the term "BDSM fiction" is a general one that doesn't give regular BDSM readers enough information to make educated choices about their reading choices. I'd like to hope that the blurbs do.