idle timeout setting (30 minutes) is also almost never increased because it doesn't make sense. The "auth penalty" option is something people do change, but there's no reason for doing so, because 4 seconds is reasonable. These options should be removed. :-)
Ack! Don't delete the idle timeout option yet! I have to set it to 30 seconds to make multiple Thunderbird clients share a common folder without losing sync. I know, RFC 3501 prohibits timeout periods of less than 30 minutes ... but sometimes I run with scissors too :-) I'm still trying to figure out the root cause of this problem by studying the logs and ethereal captures (TB no doubt - its IMAP implementation is still pretty immature).
I think Andy meant that these options should be removed from default configuration file, not from feature.
The point is that it's not necessary to get rid of features that exist but less lines in configuration file is nicer.
-- Hiroshima
