The knowledge that witcoin promotes, is the one that moves, the one that passes from one user to another. Your WIT, or registered knowledge, will be rewarded only if it is used by another user to create new knowledge or if he considers that your knowledge has inspired him/her (he will cite you when he/she registers the new knowledge). Registering knowledge just by googling it does not give any reward, because nobody will use it, nobody will "move" it (you will not get any cite) as it is already available by other means in the net. Registering knowledge needs you to spend witcoins so if you register known knowledge not genuine you will be just wasting your money.