I think i should make a topic, "Sentences that are made badly" proofreading makes baby jesus happy.
Oh and there are tons of badly drawn anime. Bokura ga ita is defintely one of them, but it is more for the artistic style than bad artwork.
Another few that come to mind is La Corda Primo Passo and Ouran Host Club. But the worst looking anime i have ever laid my eyes upon is the Power Stone anime series. It's hard to find but look it up