It's true that in Hindi this is singular, "a good poem", but it's also true that one way to translate this to great English is "Peter doesn't write good poems."
Yes. Peter doesn't write good poetry, could also work.
I hope they add alternate translations.
Selecting 'my answer should be accepted' via the report button is the best way to suggest alternative translations.
Hey Sam, I think at the point this was posted the link to "should be accepted" wasn't there for many Hindi phrases. Also, sometimes that link doesn't let you explain - yet it sometimes takes explaining to make a valid point :)