Well, it almost looks like it, as it seems like the numbers are uniformly down, just like 5-6 days ago, when Feedburner’s subscribers had fallen by half. The reason that was given at the time was that subscribers stats from Google’s Feedfetcher were off line.
Has the same thing happened again? Many commenters on the same post at Feedburner are wondering the same thing as the numbers seem to be down around 50% again. More importantly, with these kind of reliability issues the second time in as many days, it does one reflexively wonder what is going on at Feedburner/Google HQ, whether it be security issues, upgrades, or hardware failures or what have you.