...We have names-with-hyphens, names_with_underscores, nameswithoutanyseparator, and perhaps more! I don't think I should give a reason why having them all in a single format is better.
I know why every single developer would avoid changing current messages to make all of them follow one writing method (except for fixing the code in lots of places, there is the issue of wikis which use texts other than that on the message file, and even fixing Wikimedia wikis will be a big trouble).
However, I don't see a reason why we shouldn't decide a single format to be used for "newly created" messages.
Please advise
Version: unspecified
Severity: enhancement