I thought about that as well but I think, if the audience is new devs, that you should enforce using the right values in those filter fields to get devs used to the correct format. So having a converter handy would make life easier but still make sure the right learning was happening.  

 Yeah it would be cool to have guidance on how to construct events properly like they are specified in the NIPs. To maximise future interoperability and to establish common best practices.