If you have a problem with Daz, go tell it on one of the Daz forums.

Because your post here comes across as nothing more than an attack on Daz.

You don’t give any details as to what your problem is, just that you don’t like them.
No Daz is not the only player in town, most know that, but they are onw of the biggest.

So if people did follow your idea, what do you think would happen?

Yes Daz would take notice. Yes Daz would change the way they do things.
But not in the way you think/hope. It would change the 30 day money back and make it a lot harder to get a refund. So how many people do you think would thank you for that?