Why are game ideas worthless?

Well, it's been two years since starting this blog.  Today 51 of you wonderful folks have subscribed to, read, and liked my posts.  I really appreciate it.  Thank you.  A recent twitter conversation reminded me of an old blog post, which is still relevant today.  "Until you launch something, the time you spend is meaningless" was controversial at a time when this blog had few readers, let's dust it off and see if it still is.