Is there a way to alter the karma system to...

[YoshiBob210]

...make it so that each member gains one karma "point" a day they login? Like GameFAQs? Is this possible? I know it is on the GameFAQs spinoff forum codes...

[KGIII]

You might check with the makers of either SMFShop or the Complete Affiliate mods. One of those might be able to help you figure something like that out.