Here’s the short answer:
But the interesting part (and what that post likely covers) is when you do capitalize them:
That is an interesting post topic, because the answer seems simple but actually depends on context.
So the post’s “interesting” angle is likely the tension between instinct (seasons feel important, so maybe capitalize?) and the actual rule (they’re not proper nouns).
Here’s the short answer:
But the interesting part (and what that post likely covers) is when you do capitalize them:
That is an interesting post topic, because the answer seems simple but actually depends on context.
So the post’s “interesting” angle is likely the tension between instinct (seasons feel important, so maybe capitalize?) and the actual rule (they’re not proper nouns).