http://lxqyom6a3p6fdgsy6mpjyhjqjdpzleseck2jojwwzcilmsvduaeo7zyd.onion/2020/06/26/guide-push-any-data-on-to-the-blockchain-forever/index.html
One famous example is that an image of Nelson Mandela was successfully included in a single block in 2013. This may seem cute and harmless, but “everyone’s doing it” is not the desired outcome, due to the scalability problem : Full nodes must store a complete copy of blockchain and query and verify it around the clock, and if the entire blockchain becomes too large (i.e. takes too much storage space), fewer and fewer people will be able and willing to maintain full nodes, which are...