Do you know the HatePaste site? It’s a place where you can share and vote the worst code snippets you´ve ever seen (if you don’t know the site yet, take a look, you´ll have some fun I promise).
Yes, before entertaining the idea of collecting samples of bad models we could start by having repositories of (good) models, something we have so far failed to do as we have discussed several times already in this portal.
Still, I’d like to see something like HatePaste for models pop up somewhere. At least, those of us who teach MDE could contribute examples of typical mistakes we see our students doing again and again (like this infinite recursive assocations error). Anyone has a a terrible model to share?