Funny, you're missing the point completely :) See Re^2: Make asking questions easier ; request for new superdoc/titlebar.
Its not about replies getting lost.
Its about asking new questions.
Its about making it easy to ask new questions. As easy as making new replies.
What's wrong with replies to old nodes? It keeps associated information grouped together nicely.
New questions go in SOPW (Where should I post X? )