OK, well, congratulations on your gains, you made a good bet, it paid off, and I hope you can put it to good use. It does not make anything I said false. You asked why deflation is bad, and I gave you a summary of the various reasons why.
As for what we should expect...why should the current situation be so surprising? The vast majority of merchants who "accept Bitcoin" use a third party payment processor that immediately converts Bitcoin into a fiat currency. The number of people who use Bitcoin as money, rather than as a system to communicate payments made in some other currency, is vanishingly small. The "technology industry" has mostly focused on non-monetary applications of blockchains and a lot of attention has been paid to "permissioned" blockchains because they are overwhelmingly more efficient.
As for what we should expect...why should the current situation be so surprising? The vast majority of merchants who "accept Bitcoin" use a third party payment processor that immediately converts Bitcoin into a fiat currency. The number of people who use Bitcoin as money, rather than as a system to communicate payments made in some other currency, is vanishingly small. The "technology industry" has mostly focused on non-monetary applications of blockchains and a lot of attention has been paid to "permissioned" blockchains because they are overwhelmingly more efficient.