The preferred form of making suggestions for improvements is through the [UserVoice website](http://warlight.uservoice.com/
). That allows people to discuss and rate (your) ideas, as well as allow Fizzer to easily sort ideas on popularity and mark which features he (for whatever reason) simply won't implement / is currently working on / have been completed.
It's also easy to [keep track of ideas you've proposed and/or voted on](http://warlight.uservoice.com/users/20320697-rvw
) (well, obviously that's my list, but as soon as you start using it, you get such a list as well).