We need a topic itself for "Famous Ponzi Scheme in Crypto-world" which contains a list of all past Ponzi Crypto Project and projects tat's still going on. I think it will be a big hel for newbies like myself, and more people could help it by adding some project that they found which indicated using Ponzi scheme into the list.
It would be difficult to list all the old and ongoing Ponzi schemes in a single topic, as they have been created over the years and continue to emerge even now. Even these schemes appear for a while and then disappear, and others appear. So, if you know the red flags and indicators and do your research, this will help you discover them and avoid them easily without anyone telling you about them; there are thousands of these schemes and phishing sites, so you must always be vigilant and always not be deceived by their enticing promises, do not invest based on someone’s instructions and temptations to you. If you cannot distinguish these Ponzi platforms, you can ask your question here in the forum. You will find plenty of members willing to help.