Use of the prefix when starting a new After Report thread

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When I start a new After Report thread I'm not allowed to use no prefix, which means I have to use Other if I'm doing a report on either a private WL or on a WL from another shop not listed. That means that Other is not of much help to the reader. So could the mods replace Other by 2 new options : Private and Other Shop. You might even want to consider a third option, namely Cracker Private, since there are so many of them!

Thanks