I like Mr.Ragunath Suggetion about display all threads of a topic on a single page.

I find some common subject / topics / problems like " serial comm port , SPI , ISP , counter , counting pulses , debounncing , noise inrerference ,part availability / problems in new deriva etc" often get repeated with similar queations / answers. Why not list make a link of these topics(which can be picked up by voting periodically) and put permanent pages for those topics. A newcomer & anybody else interested in that topics can go to that topic page see all information he wants.
About Karma system - people whose post are there in a topics list should not be allowed to score points -sometimes it happens if somebody don't like you reply to his msh he may put neg score.