https://issues.dlang.org/show_bug.cgi?id=13184
--- Comment #4 from Manu <turkey...@gmail.com> --- I think it should definitely emit an error. There may come some time in the future where it is decided that application of the attribute may like to mean something new and useful, but if we leave this situation as is, then that is a breaking change. If we expect that meaningless attributes produce compile errors, then in the future when we want to make it meaningful, we can do it without breaking any code. --
