Could we not do both? Link to the Github issue in the mailing list post? The mailing lists aren't as visible to the wider community as you might think anyway.

On Tue, Jan 27, 2015 at 3:59 PM, Henning Thielemann <lemming@henning-thielemann.de> wrote:

On Tue, 27 Jan 2015, Gabriel Gonzalez wrote:

Whether or not we use Github, you have to admit that the development process for core libraries is not very
transparent in its current form.  We have evidence for this right now: lots of people have been complaining
that they never realized that this change got into GHC-7.10.

You don't have to adopt my specific suggestion, but you can't just keep doing business as usual either and
pretend that there isn't a problem.  If you reject my Github suggestion then propose a better solution for
increasing the transparency and visibility of the process.

 We could warn about such a discussion in other mailing lists such as haskell, haskell-cafe, haskell-beginner, ghc-dev.
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