Exposing my writing in a public git repository after publication?
If you're like most people, you probably include comments in your tex files that may not be meant for public consumption: mistakes that you commented out, ideas for future projects that you don't want someone else to do before you, or general remarks that are a little too candid.

Some embarrassing examples are at https://twitter.com/overheardonaph, taken from tex source files submitted to arXiv.