english original missing
Don't know how you got there, but that does not appear to be a translatable unit.
Obsolete messages show up in search results all the time. The signs of obsolescence are not obvious to the non-initiated. Since your policy is not to clean them up, perhaps there should be an indication on the edit page or window that a message has been deactivated for translation.
In which use case do obsolete messages show up all the time? The only thing I can think of is in TM results. And that's exactly where we want to keep them for a while.
I came across this message when reviewing recent changes to cy - user Xxglennxx had changed this message. I imagine that he had run a search for the word 'gwylio' - there is a whole batch of changes related to this word.
When searching for any keyword using the search box at the top left, obsolete messages containing the keyword in question will show up in the search results the same way current ones do, with no way to distinguish between them from the results list.
I do agree with keeping obsolete messages. They are useful for translation memory purposes if nothing else. But I think it would be good to have some clear way of distinguishing them from current messages, in search results and in the edit pages themselves.
Have amended the FAQ on this. Am not sure that the sentence 'Obsolete messages are not included in the translation tool or in the localisation statistics' is correct.