Contributor info change requests

I'm wondering whether the spec should describe the behavior of the maintainers when a contributor asks to change his info (let's say by submitting a PR with the updates).

For example, if I was a contributor of a given project two years ago, and want to
- change my avatar
- the url my avatar links to
- add the link to a video of a talk I made on the
- remove a link
- change my name
- remove myself from the list

Should the maintainer be "obligated" to accept such a change? Do we want the spec to have a position on this? What if there is some obscene wording/images/links in what is demanded?
Thoughts?