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NFT Stamps emitted by UPU countries and maybe used for real postage are interesting and innovative.
Of course this is working for first editions. I will not pay any premium, but mostly I would be focused on emissions sold directly by postage administrations.
Much probably, the emissions with high numbers/speculative etc are just a waste of times like CTO stamps.
Just see some EU countries that have not already sold all products

USA will not ban BTC, just for your reference and point of discussion
https://www.usmarshals.gov/what-we-do/asset-forfeiture/sale-approximately-404158424932-bitcoin
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Thx for the link.
Things evolve, my rational thinking too. This apply to all things i interarct with. One day it's OK, next it's not so fine anymore.
Anyway, made some $$$ with BTC, get retired : its time to consider how to keep this easy money.
Does not meant i do not own BTC or other crypto anymore but far less than at the 2022 top : BTC ban (trough tough regulations, shadow bank banning etc) is a probability.
Probability which is high enough for me to stay away and invest in the real life/assets.
Last point : some EU stamps are still available u said.
I just see a market disfunction there and a great opportunity to buy more as a long term investor (good example is postereum V4. No hype so i was able to secure a lot of them (time consuming process) and was lucky enough to get the #000001 and #001500 (ie first and last ex of a 1500 pure digital edition))
Not in a hurry, let see in a (couple of?) decades what the price will be.
There are also some UAE stamps stilll available. Same for malaysian one and so on.
Is this really such a bad deal?