What's the point of forcing commercials on us online and giving us the option to skip them? Why post them if we're not gonna watch them?

On one site I got to almost every day, they post the same commercial twice in a row! If I'm NOT gonna watch it the first time, WHY would I wanna watch it the second time?
WHY go to the great cost and effort to create them when nobody's gonna watch past the obligatory first 5 seconds?
Same with t. v.! They run about 8:00 of commercials for every 7:00 of show and everybody leaves the room to pee, fuck, shit or get something to eat when they come on!!
If I worked at an ad agency and knew nobody was watching the commercial I created, other than all the money I'd make for doing it, I'd feel my time and energy had been a complete waste!!

What's the point of forcing commercials on us online and giving us the option to skip them? Why post them if we're not gonna watch them?
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