Inchoate is okay in Discussion.
("Potentially inchoate" is also a curious formulation: as if allowing for the possibility that it might actually be a completely polished and brilliantly insightful post, but still wanting to punish the author just in case it does turn out to be inchoate.)
Let's say you recently purchased a new computer game. Reviewers like the game, but they say that the game itself pales in comparison to a massive, difficult-to-access secret area near the end. Bizarrely, this secret area contains over 90% of the content in the game. It's also rumored to be a lot better designed.
If you're like most gamers, you'll probably play through the game normally a few times, and go for the secret area on your second or third try. But what if the game was real life, and you died as soon as your first try ended?
Edit for clarifying points: