[pytest-dev] thanking for PRs?

I was wondering about the practise to have PR authors add themselves to AUTHORS and CHANGELOG. The latter particularly is a bit odd, i.e. to thank yourself for submitting a PR. What do you all think about having the merger do this last bit (changelog entry)? AUTHORS can also be usually obtained from the history so that contributors can concentrate on tests, code and possibly docs. my 2c, holger