That's what github is doing so nicely with pull-requests: you maintain authorship of your fixes (it's even cryptographically secured,) and the entire process is visible and documented on the project's source home page.
That is not unique to github pull requests, is it? I thought that was common to all of git, and the reason why git has separate "author" and "commiter" fields
yes, as they gotta pull from you for that. github just makes the process easier and it is more trouble not to attribute via github.
in both cases you can make a patch (=copy/paste) instead. and in the first case you often actually provide a patch because it might be easier or because they're using something else than a git or git-like vcs
yes and no, i mean, one can copy paste and change a lil and it works. That being said Github makes it harder not to do that (but some people are like that)
