Just in case you find it interesting:
http://neverworkintheory.org/2016/06/09/too-many-knobs.html summarizes this paper:
"Hey, You Have Given Me Too Many Knobs! Understanding and Dealing with Over-Designed Configuration in System Software". ESEC/FSE'15, August 2015, http://dx.doi.org/10.1145/2786805.2786852, http://cseweb.ucsd.edu/~tixu/papers/fse15.pdf.
The topic of amount and usefulness of user preferences is relevant to our software. I dream of a simpler user configuration by default combined with easier ways to find and enable community supported gadgets.