I think the other person meant that the missing letters up in the tree "leaves" form the ground row. So that the letters in the last row may complete all the other rows. I doubt that it matches but wont confirm that either.

I count three 'o's on the bottom, from "common", "problem", and "poems". Seems correct to me?

Edit:

Four 'u's from "deciduous", "autumn", and "until"; three 't's from "the", "the", and "themselves"; two 'r's from "stirrings" and "arrives"; three 'n's from "when", "begin", and "gently"...

Thanks for you work!

Even then I had a hard time. "ar ives" gave me a hard time because I assumed "ar " was "are" and spent too long figuring out what "ives" was supposed to be

This poem was in my English classroom. I preferred the following one, though:

I saw a man pursuing the horizon;

Round and round they sped.

I was disturbed at this;

I accosted the man.

“It is futile,” I said, “You can never —”

“You lie,” he cried,
And ran on.

NFO files are still very popular. Long live the demoscene