I hate ORMs.

After days of fumbling in the dark you finally isolate the problematic query, post it like "guys I found it," and still nobody speaks up. So you hack the ORM to attach tracebacks as comments to each query, retest everything, and finally git-blame your way to somebody who owns that bit of code and they're always like "wait, the ORM did WHAT?"

I'd rather grep code for SQL any day.