Right now, there is a flood of new R questions being posted on Stack Overflow. These are good, potentially valuable questions. However, this use of SO is preventing people with real questions from getting visibility. I posted a question less than 10 minutes ago and it's almost off the front page already! That's insane.
I'm fully supportive of the R community that wants to leverage Stack Overflow, but they shouldn't flood it all at once during times when a lot of people have questions about things they are working on. For example, my question is about getting a UML diagram laid out so I can export it and put it in a report. I'm sure these R questions aren't current, pressing issues, but they are having a negative impact on anyone who needs an answer now or quickly (although my question isn't pressing...it's sad to see so many good questions pushed down).