Gurney, an interesting theory, but certainly not exhaustive of the phenomenon. There are indeed "fault finders" who hope to raise their own prestige by diminishing others' – a motivation to which ignoring is the adequate answer. But analyzing poems and comparing them with their sources is a very honourable and enlightening exercise, by which the poets may shine all the brighter even if caught with creative adaptations of facts, provided the creativity is deemed successful.

"Aspie" is not a verdict about the moral or artistic quality of one's work. Some are obsessed with their genius, others with pedantry; the distinction is not always obvious.

Those who post their (second-hand) knowledge to this thread do so because the OP has invited them: "am I in good company at least?" Yes, you are, and congratulations if the overall quality of your song matches Keats as well.