You said — It won’t consist of active protests on street corners with tiny bags of dried beverages. It might consist of more underground means of protest. I can see people using fake IDs (much as illegal aliens do) to establish addresses in states that don’t have sales taxes to get out of paying.
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Heck! Can you imagine how upset I was to be buying stuff online and getting charged sales taxes, and yet, I lived in a state that did not have sales tax. There was nothing I could do to convince some of these online retailers to not charge me sales tax (and they did have my home address). They said that if they “shipped it” elsewhere, other than to my home address, they would have to charge sales tax for that state it was shipped to. If they shipped it to my home address, then they wouldn’t have to charge me sales tax.
I couldn’t convince them to do it any differently, even though I wasn’t at “home” at the time... LOL...
So, you see, there are “always problems” no matter what...
I used to live in Vancouver, Washington, and every place I went to shop asked me if I was an Oregon resident. (Of course, I groaned that they would have to go ahead and tax me.) That didn't happen when I went to restaurants, because I was eating the meal in Washington, and that would have been the case for you if you were traveling in WA yourself. The exemption is only for things that it was presumed you'd be taking back to Oregon.
Isn't that the same thing with items you wished shipped to states that online retailers were authorized to collect sales taxes for? The presumption is that you'd be using or consuming those things there, and not in Oregon.
As a side note, if this goes through, expect many fake Washingtonians to "move" to post office boxes in Oregon! If I were still back there, you can bet that I'd be one of them!