[$] Ideas versus implementation

<p>A short sub-thread on the python-ideas mailing list provides some "food forthought" about the purpose and scope of that list, but also some things toperhaps be considered more widely. When discussing new features and ideas,it is common for the conversation to be somewhat hypothetical, but honingin on something that could be implemented takes a fair amount of work forthose participating. If the feature is proposed and championed by someonewho has no intention of actually implementing it, should the thread comewith some kind of warning?