I'm relatively new to the forum and (probably like many) I first registered for help / advice.
However, I regularly check the forum to see if there is anything I believe I can offer help or advice on, to sort of pay back the help I get in a roundabout way.
I'd like to offer more help, but there are lots of things outside my area of expertise. Or sometimes you come across a question you can help with, but someone's beaten you to the answer.
I think as long as you at least try to contribute, then %'s shouldn't matter.