There Are None So Blind...

That's not a completely fair title.  But, we tend to see what we want to see.  For instance:

Last week, when the light was just right, several previously unnoticed ghost signs materialized before me.  Like this one, on Vine.

Now, compare these pictures with some taken by fellow Ghostsignbuster Visualingual.

 

It's the same block.

She focused on the Barr's Loans, but missed the painted sign, whereas I completely blocked out the bright yellow sign for these. 
We see what we want, I guess.