- broadcasting updates when translatewiki.net is updated;
- broadcasting PHP warnings/notices/errors to the channel so that we can notice and fix any possible problems quickly;
- broadcasting links to Special:ManageMessageGroups when there are message changes to import.
If you are annoyed by its messages, it is safe to ignore it. Try the
/ignore rakkaus command.
It also has a sister bot, rakkaudella, relaying Special:Recentchanges (unfiltered) to #translatewiki-rc for patrolling purposes.
Its code is available on translatewiki's Git repository.