Late 2017 and early 2018 i was holding lots of coins and tokens from the ico's in that some i really trusted with solution and team (not only me most of crypto community trusted). Now this coins or token became nothing . But some projects i entered to sell for small margin profit these projects given profit . So holding token or coin for long term is meaningless.
I also held a lot of tokens from 2017-2018. There was a time when those altcoins were very profitable for me, but I didn't sell them. Now their prices have dropped hundreds of times and become worthless, all because of greed and ignorance in this market.
That's probably the experience of some, those times, we thought the market will continue to be bullish and we got so greedy as they are pumping like crazy, so we are like being hypnotize by the word "HODL", and despite seeing the market going down, we still trust our that word until it we are already late in doing the dump, so there's no reason to dump when the price dropped 100 times or more already.