You could just have an alt account for the nsfw, if you think your current viewerbase is too innocent.

I think it's up to you personally--but if you are worried about your fanbase, then you could always have an alt account like the person above said.

I stopped posting it myself, because of harassment in one form or another (though it was mostly people asking me to draw them free porn). shrug But that was my personal decision not to do it, because it wasn't the kind of attention I wanted from people--I wanted people to like my actual art and not simply the content because it was NSFW. :)