I will answer your questions with ease:
1. All those who are still trying to invest are 2 types, the first are newcomers who have not yet poured their deposit on hoping for a miracle, and the second are seasoned professionals who in such a bad market can select projects and get profit from them.
2. These are scammers who did not manage to earn a lot in 2018 and decided to squeeze out everything that is possible with this industry in 2019, well, there are a few more projects that really cost themselves, but there are very few of them.