I have seen people in the discord where they are pretty much solid not selling even their altcoins. They drop 70% already but some of them are proud to say they have diamond hands.
If BTC price goes $1M I think many will be forced to sell, yet also happy to do so. The institutions should just pump BTC so that we will all be forced to dump our BTC. For me, I might just sell also if BTC is going to be banned.
Maybe you can share the link here so that we can check that out and maybe ask those people a proof if what they are telling is real and not just a brag because holding for too long is not easy and seeing
70% 50+ decline in our portfolio can make us panic already. We can likely sell to save the rest of our assets especially if most of it are altcoins because their future can be less brighter than in Bitcoin.
Now when it comes to selling, we are lucky if we can see $1M before we sell but I think people will already unload once we hit $100k or more. Institutions won't just pump BTC only for the sake of the public but they can invest because they are thinking about their future. If BTC is going to be banned in your country, there might be a chance for it to be unbanned so I wouldn't really sell my coins.