I actually just tried
https://bitcy.biz/ by not researching, and not knowing about hyip sites. I started doing research after I deposit and it started to feel scamming. I deposited .025btc, and after 15 days did get .038 back. I withdrawal asap after the 15 days, and I was able to get it all back. I might consider depositing .013 as that's their money to see what happens. If I lose it then no real loss for me since I have taken my initial deposit out. It is still a high risk but high gain. You are technically gambling, but if they are paying, why not?
After I got worried, I started researching hardcore, and I can't verify the people in that site, their location is a clothing store, they actually put their logo on the window in the site, but if you google map it, there is no logo. To me, they are definitely a scam that is paying at least at lower levels.
In this case study, I did profit and got my money back, but I would never put a large amount of money in them.
I came across this sites:
https://hyip-zanoza.me/en/http://invest-tracing.com/There seem to be several similar sites that list paying and non paying hyip sites. If you are going to "try it out," definitely only invest what you are willing to lose. Be cautious and do some research. There seems to be an increase this year in hyip sites popping up, it seems unregulated right now, so they are getting away with it.
Do the research, deposit what you are ok with losing, don’t deposit high amount.