David... Remi is not insulting you, but rather making a comment that, if you wish to see XaraLX improve, then maybe get some books on something like c++ and then apply the talent to improving it. His comment was not so much meaning your ideas are not need here, on this forum per say, but I believe he was refering to your comment about XaraLX not taking off so well or the pity that development dropped.
Try to not take too much too personaly here... we are not filled with members or mods who are insulting, I think this instance just got cross-wired wrong, and Remi's comment was not intended the way it seems, which is a common mistake when reading text and not actually conversing in person?

And what Bill said about the XaraLX development is completely correct.