Just say, "yes, the client (or documentation, or whatever) can always improve. We are working on it, and would love to hear your ideas"review your well commented and standard compliant patch to the Git repo.
There Fixed it.
The bitcoin infrastructure is not a product, if people come in and try to treat it as such, they are bound to be disappointed. If you want to build and market a compliant client, please by all means, if you can find a market niche meet it. As it stands bitcoind is FLOSS, in FLOSS land meritocracy matters, and you don't get to make demands if you don't contribute usable code, otherwise you are asking the devs to work for you for free, which is not a very compelling argument.
That is not true. Any open source project has plenty of work for people that aren't coders - including support and documentation issues. Hell, most large projects like Drupal are flush with coders but begging for people to go back and re-write documentation that hasn't been updated in 2 or 3 years, etc. And devs can only work on what they know about. Filing bug reports and feature requests and having those commented on by other users is also very important.