Only do it with the amount of money that you could ignore for a long time, don't try it with your whole savings since we are not sure about the future.
I am not saying that it wouldn't be profitable but what if something unexpected came up when the price is still low and you badly needs the money, it would just force you to sell it even if you're going to take the loss.
I like the point you're making about using money that we can ignore even though basically any money shouldn't be ignored because money is a very useful tool at this point in time. And as for a brighter future in terms of something, I think only a minority of people are not convinced that it's for the future of Bitcoin.
Because if you remember the basic concept of Buy the DIP, and HODL it is a concept where someone who basically doesn't really remember selling at a loss or selling at a low price in the short term. But such a concept is a concept that is more suitable for the long term after buying at a low price and holding it (despite the misfortune experienced by someone in his life so that he has to cash out his assets to solve certain problems)