Trouble is, how else do you become proficient with a language if you don't write code with it?
Strawman. No one's telling you not to write code. People are telling you "Don't write bad code to solve a difficult problem badly." You can ignore that, of course, but please don't distribute code like that without running it by some smart and experienced other people first.
The thing is, you can become a good and experienced programmer by ignoring what the good and experienced programmers tell you. It'll just take a lot longer and be a lot more difficult than if you listened to them when they said "I did it the hard way; this way is easlier."
How do new students know if a module is any good?
Ask people you trust and who have experience for their recommendations.