Absolutely not stupid and naive, just reflective of how the press sensationalises tax and how little education we get on it!
This is why I started the thread as there was so much misinformation on the Vinted threads.
First of all, this is not a change in tax rules or policy. For years the £1,000 trading limit has been there - mostly for the benefit of those selling on Vinted and the like (before there was no lower limit or allowance).
The limit applies if you are trading only. Trading isn’t clearly defined anywhere, but if you are buying things with the intention to sell for a profit, making many many transactions over time, or improving the things before you sell (think embroidering clothes then selling) then you are probably trading. If you are selling things you’ve used personally and no longer need, you’re probably not.
If you’re not trading these rules don’t apply to you. HMRC might find you in Vinted and ask some questions, and once you explain what you are doing with anecdotal evidence they are unlikely to pursue further.
Even if you are trading, you only pay tax on the profits you make. Most stuff you will obviously not be selling at a profit and so again, no tax.
The same rules apply to car boots.
In the digital artwork position, I think this should be taxed. You’re creating something for profit. It’s not a lot different to being employed and paid. Again, you only pay tax on the profits and I’d normally recommend that anyone puts 20% of their total income aside for the tax bill. Again, you could not earn £1,000 without having to pay tax - it’s only when it’s more than this you pay tax. But again, that’s only obvious if you know!