hey brooke,
ok first off your wants and haves as well as your trades are visible in the little blue links on the side of the page under your name<for that matter all of ours are unless turned off on settings page.
Second the section titled help desk or rules and guides has most of the info you need<I assume you are refering to pins listed in signature in bottom of posts>
My advice is collect what you want!! Pin collecting is a form of art appreciation, no one can tell you what is or isnt good except you!! Collect the pins or series as you see fit!! I personally collect by character so some characters while Villians<my forte> are not in my collection at all, in fact as the collection grows so it changes,Once I wanted all the Villlians, then either difficulty in obtaining, or shear boredom has caused me to reduce it to just the ones that inspired/scared me!!
If you complete a set it is because you want them all not for any other reason<unless you have compulsions to complete everything in which case I have a few yard chores I would love to discuss with you!!> Some pins will be automatic must haves, some will be ehhh???, and some no ways.. Completeing a set or series is entirely up to you!!!!
As for the pins you have that you are unsure of, post a pic!!! Everyone here has the disease just as you do, some of us see alot of pins, so we may know it on site, others of us are reference junkies and can find Jimmy hoffa if we just decided we wanted to look for him, so finding your pin for you is a snap!!!
Does that help any?