Not every word with a “d” sound actually contains the letter D. Some people just…can’t…grasp the idea. Take this sign on a mini refrigerator, for example:
Note that “refrigerator” on the sign on top of the box is spelled correctly. Come on, get your poop in a group!
Grammaniac 
I imagine it sounding like the announcers on soccer games: “RefrigeraDORRRRR!!
I agree! That D seems like it should have so much emphasis.
Oh this stuff makes me crazy! I may not be able to continue reading your blog. It hurts my head, HAHA!
It was probably written by someone who speaks Spanish.