Honestly, my first thought is that you might want to link that one screenshot where there were several pages of thoughts in a description literally listing off seeing hundreds of dead goblins just so Toady realizes that isn't hyperbole...
I think there could also be a "shortened" list for many traits. Yeah, it's nice that traits can be given specific language, but it hits "eyeglaze levels" when you see a dozen traits listed that way in a row, and players just can't deal with it.
In fact, this is one of the major reasons I prefer using Dwarf Therapist - instead of some insidiously bland longform text readout, it just represents personality traits as large or small squares in a spreadsheet, which is instantly, visibly recognizable. (Anger propensity- big square, love prop- little square, violence- little square. OK, so, cranky but not violent, got it!)
If Toady is absolutely dead-set against iconographic information readouts (which he shouldn't be, as it is scientifically proven to be a better mode of communicating basic ideas) then at least use something like shortened and preferably color-coded personality traits. I.E. Urist mcCranky has an explosive temper, is not romantic, is rarely violent.
A better use would be to use symbols to express this sort of information rapidly without having to worry about the bland long-form prose that causes eyeglaze. Maybe there could be an "expand" button that reads it all out for you, but what players really need when managing a hundred dwarves is the ability to search for dwarves that have courage or have anger issues. (Again, this is why I play with Dwarf Therapist, since it lets me understand all my dwarves at once, rather than having to manually go through every goddamn dwarf one-by-one and having to write it all out on paper what their personalities mean.)
For an example, you might then have -
*Anger Propensity*
xLove Propensityx
XXViolenceXX
(Obviously, this is reusing existing symbols, but there would be reason to do so, since it means less to learn, which is the point of using symbols in the first place.)
This would at least give you a list of notable traits and their general values, which is what you actually need to know, especially going forward with dwarf personalities mattering more and more.