As probably many users here I am a subscriber to comp.soft-sys.math.mathematica (aka mathgroup).
A number of questions seem to pop up in more or less identical form on SE and mathgroup and I am wondering whether this should be frowned upon or not?
Edit: This may also become more frequent with the advent of http://community.wolfram.com (see e.g. https://mathematica.stackexchange.com/q/30668/131 and Looking for a way to insert multiple elements into multiple positions simultaneously in a list). Somehow checking both sources for possible duplicates seems bothersome.