Being pragmatic, I think it is better the MIT style license. e.g.: somebody wants to take the tile algorithm from dwm for some proprietary project (yes, there are projects where the code cannot be shared), if dwm is GPL they will just copy it without telling to anybody, to avoid further legal problems; but if it is MIT they can tell it is your code without any problem (and even report you bugs/improvements, if that's the case). Anyway, I think this whole discussion is pointless, because while Anselm releases under the MIT licenses you can just take it and re-release under GPL, if that makes you feel better.
Just my 2 cents, -- - yiyus || JGL .