Quote from: Taras on February 17, 2018, 01:05:37 PM

Have you considered adding CLAMS to the list? While not really a fork of bitcoin, every bitcoin address above a certain (very small) balance in May 2014 received a fixed amount of CLAMS in an airdrop

The CLAM airdrop happened before I was into crypto. I can't speak from personal experience, so I won't add it to the OP.
I'll add this here though:

Quote from: SuperClam on May 24, 2014, 04:33:19 AM

Every person who had Bitcoin at block 300,377, Litecoin at block 565,693, or Dogecoin at block 218,556 was given ~4.6 CLAM.
Yes, it is still waiting on chain for you

This is currently worth $28 per address which held more than just dust.

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(like BTX, but there wasn't some form to claim it, the airdrop was entirely on-chain and all the outputs exist already)

BitCore (BTX) used airdrop after entering a signed message into a form, but that ended. Their current airdrop dropped to existing Bitcoin addresses with a balance of 0.01BTC or more. So it's kinda like what CLAMs did, although it depends on your balance instead of a fixed amount per address.

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The amount is worthwhile and a few of my friends were surprised to find they had hundreds of dollars hiding in their old wallets when I told them about it, so it may be a useful addition to this list even though it's ancient.

That's always a nice surprise! Remember: satoshi recommended never to delete a wallet.