This thread was prompted by reading the B&W thread that is current at the moment.
I know the thinking behind presets, but I've had LR since version 1 and I can't say that I have used - or am ever likely to use - presets in batch processing. In my experience (less than most perhaps but enough to write this) I think every image requires individual treatment to get the best out of it. I agree that (for example) a w/b error can easily be corrected using a preset, but pasting settings does that too and easier. As each shot one takes is the result of individual attempts by the camera to focus on what it sees, I see sharpening as specific to each frame too. Global sharpening can be done at export stage.
Even in the context of B&W conversion - most images will need individual attention IME.
I see people making a big deal of giving away their presets and even selling them. Many of these are the result of having sliders hard over for a particular look that one wouldn't really want on a whole batch of images.
I just think it is an unnecessary feature and adds an unnecessary extra complication to an excellent image editor.
Are your experiences really different to mine? What am I doing wrong?