***********************I have 2 suggestions ******************************
Suggestion 1My suggestion is to assign a Level Of Difficulty (LOD) to each question such as Low, Medium, High and tough. Also if we can club LOD with each category, everyone can actually choose which level to start with. From Low level each one can slowly graduate to next higher levels in each category (Medium, High, Tough). our moderators & founders should assign a LOD to each question and it will get categories it self accordingly on forums' active board under a specific topic. I think clubbing this with your tagging system will work really well.
for example : An intern can chooses to enter Critical Reasoning at any level (LOD) say High for any topic say Bold faced question as per his wish (because we don't know how good he is) and starts answering.
Also kudos should have differntial marking for each level; hence a tough kudos will score say +4 and low kudos will score +1.
Suggestion 2why can't we have standard font as specified by GMAT for all questions, even blue screen with white background. This will give a real feel that one is solving on GMAT test screen. See this is not a eureka suggestion but it wil just make our experience like one in the real GMAT test screen..that's it