Low-rep users are rate-limited to 1 question every 40 minutes (90 minutes on Stack Overflow) network-wide. I tried to submit a question here on WebApps.StackExchange, but I got the following error:
You can only post once every 60 minutes.
60 minutes? I searched all over Meta Stack Exchange, but nowhere does it mention a case where the time limit is 60 minutes instead of the usual 40.
What was the cause of that?