In the episode 12 of the first Bakemonogatari season, there's a fence with an interesting pattern which seemingly has the word "KAWAK" in it:
In the first episode of the second Monogatari season we see the same place:
And another angle:
Looks like the words "CHICO" and "KAWAKITA"!
With the whole show stuffed with symbolism, subtle references and hidden messages, could this mean something?