Everybody is getting taxed over time because the IRS is fed up with online shoppers committing tax fraud. If you don't directly pay taxes for your online purchases, you're supposed to report that you are an out of state online buyer on your tax return. You aren't expected to keep track of your taxable amount. Standardized tax software programs like Turbo Tax apply a general tax cost for individuals and households. When I reported myself on my tax form back when Amazon was tax free for CA residents, my assigned estimated tax amount came out to be a measly $50. As a CAG that's peanuts and I still got away with avoiding a lot of tax charges.
The problem was I'm the minority that reported. A lot of people assumed that reporting online sales tax required repaying every single dollar owed but that simply was never the case. Now, IRS says eventually everybody will pay for their negligence. If people complain about having to pay taxes from sites like Amazon and NewEgg, they are hypocritical if they never bothered to click the "online tax free purchases" item on their tax return. If everybody had reported it, we'd at least have avoided this tax legislation for much longer if even at all.
tl;dr - if ya'll just paid your $50, you'd have avoided online sale taxes.