Kanye's Twitter announcement that he is running for President has already received more than half a million Retweets. And endorsements from high profile public figures including Elon Musk. If this is a question of gaining traction or votes, he already has a PR machine at his fingertips.
Were he not to gain the required number of votes beforehand, there are alternative ways for Kanye to be voted in. Citizens are able to write in their preferred candidate even where they are not officially on the ballot. If he succeeded in getting enough write in votes, Kanye could win in states where he is not registered.