Yeah. It takes some reading to understand the different levels of trust for a key. Even rewording those levels could be effective, if perhaps a bit verbose.

[]Distrust []Trust only this key []Trust this key to automatically trust other keys []This is my key

Obviously I dont know what all the levels exactly mean. but as far as I can tell, these are the levels of "web of trust", where for it to truly be a web, #3 should be the default.

I either dont trust someone, I trust someone to represent themselves, I trust someone's to vouch for of others, or I am that someone.