True, although if you're in the EU, there should be a 30 days reference period.
"In all EU countries traders are obliged, when offering a discount, to indicate the lowest price applied to the item at least 30 days before the announcement of the price reduction."
Of course, enforcement of such rules is the problem here. But if you notice such discrepancies, you are more than encouraged to file a complaint to the shop and then to your national agency responsible for the protection of consumers if the seller doesn't act in good faith. I was fairly surprised to see how well the latter has worked against a large company in my Balkan country.
an admittedly shallow search for this topic resulted in a wikipedia page[1] that states that the EU witheld funding to regions in Poland that have policies that were summarily characterized as "LGBT-free zones".
In EU language, this is pretty strong distancing from such positions.
Or worse the same SKU but “for black friday”. It was common for things like TVs to be marketed in such a way as to think it was the same product as previously, but instead was a lesser product like a tv with fewer ports and a shorter warranty (which would imply cheaper life limited components like capacitors).
In my experience, retailers will do this to make their “special” Black Friday sale similar to regular sales that roll around every few months, but I have never seen or heard of a company pulling this to the point where they’re selling stuff for higher than the normal full price.
So you’re right that Black Friday might not be the best time to buy something, but it’s fine if you want to get something at a good price and don’t feel like putting any effort into tracking prices throughout the year.
