A lot of cryptocurrencies have been created throughout time.
I personally have not held onto any old or even dead blockchains.
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With some shame on my part, I would like to tell that I still holds those coins and tokens that I got from different airdrops and giveaways when I started trying this cryptocurrency things. I'm not proud that I still has many of those zero-valued coins and tokens. I did some advertisements of them on different social media just to get some tokens from them, but in the end, the coin has still no value. Dead projects made me sick that time, so I decided to stop joining giveaways and airdrops if the tokens that they offer has zero alue in the market or is not listed on any exchange platform.