lol, wordpress needs marketing? it's only like 90% of the blogs online uses it? it's unlikely for a user to know bitcoin, but unaware of wordpress. Bitcoin is far less well known compared to wordpress.
Established brand names need marketing too. How do you think one stays on top. Here's an example. Why did Google leave China?
Google left China because the Chinese government hate it, and actively ban its services, not because of any marketing reasons.