Maybe people started downloading other clients than the bitcoin-qt one. With the new bitcoin website other clients too are reported, not only the qt one.
Wow that blockchain.info logarithmic graphic is impressive
This. I downloaded bitcoin-qt 2 years ago. Only just learned that blockchain.info had launched features beyond providing info on the block chain.
You guys don't get it do you....how popular the client is, is not a matter at all because its not a variable when considering a one month period. The only thing that matters is whether its trending up or down - we're not looking at the absolute numbers. If it's not a popular client its not likely to get much downloads last week either, so why less people downloaded it this week? = because less new people came in this week compared with the last.