> As a rule,I feel that the size of each list item should inversely proportional to the size of the list.

What are you talking about? That seems completely nonsensical. if I have a list with 100 items, i'm not going to restrict each list item to two words, or two paragraphs, if the verbosity is needed. That is completely detached and separate from the role of lists. If thats how you like to do your lists that's certainly your choice, but a rule? seems a bit much.