I think the best and natural way would be users exchanging presets. Obviously this doesn't happen too much in the forums. I *should* finally come up with a patch exchange area on my website. But as things happen to be, I have to concentrate on Zebra2 currently.
My personal choice would be a web based preset exchange built right into the plugins. By that you could simply push a "submit" button and your current preset is up in the database, along with some meta information. Within the preset manager you could browse the presets in the database, and save the ones you want to keep. *sigh* I just don't know when to do this...
Cheers,

