>>/8928/
So having this is nice: "{percent_of_lines_that_are_greentext}% for {post_text_file} which has {total_number_of_lines} line(s)", but it doesn't explain the amount of consecutive lines of greentext. A field which details the most consecutive lines of greentext in a post would have more info. So if the post was:
"
> text
text
> text
> text
"
It would say max_consecutive_greentext_lines=2. Other consideration: don't care about lines that look like /^\s*>>\d+$/, which would match the next line:
 >>/9000/

Also, here's a lazy thing to filter out posts with 1 to 9 lines:
> $ cat 1m1f2.txt | grep -v "has 1 l\|has 2 l\|has 3 l\|has 4 l\|has 5 l\|has 6 l\|has 7 l\|has 8 l\|has 9 l"

Image
> /z8/put/gd/from_desumlp_drive.google.com_search/0folder/1OuX7b2S_L7uV7duKa6CZwScpUo8iv2Ng/Thread 3/1580487366097.png