I respect your opinion of not selling your land to buy Bitcoin. But this is different is OP has an abundance of land from what he said. It was a good form for him to sell a portion of his land to invest in Bitcoin. Things could go south we know but isn't that what an investment is? He invested what he can afford to lose.
You talked about diversification. Selling a part of his land to invest in something is diversification. Now he has assets in land and Bitcoin.
It's just that this choice has to be seen from several perspectives where it's like what the OP said, he's selling because he has a lot of properties so it's not wrong to sell and make it into bitcoin but it's definitely not recommended for someone who only has one property and all of this here by selling their assets and being in bitcoin.
Very true. It would be very unwise to sell all of your assets and put everything into another asset.
This is why they say to invest what you can afford to lose. We have to invest wisely.
In the OP's case, he has a lot of land and he didn't sell everything. He said he has others. I see it as a pretty good investment to try and diversify his investment.
It is a very bad idea to use everything you have for investment because in as much as we should take risks, we should take calculated risks. A risk that if things go wrong, we can have something to fall back to.