Both token contracts are created by same person
eGold: https://etherscan.io/address/0x6025f65f6b2f93d8ed1efedc752acfd4bdbcec3e
iBTC: https://etherscan.io/address/0x90c88ccd74e57e016acae8ad1eaa12ecf4c06f33
Creator: https://etherscan.io/address/0x9e5135649cec87d01c084e4f040ef32d22a1d4c8
But, these both tokens are promoted by different bitcointalk accounts
iBTC promoted by dontoshi at this thread https://bitcointalksearch.org/topic/ann-ibtc-the-new-erc20-bitcoin-join-ibtc-trading-competition-to-win-200k-2251334
EGOLD promoted by eGoldTeam at this thread https://bitcointalksearch.org/topic/annegold-egold-lending-betting-buy-back-program-cmc-2253578
But, both accounts (dontoshi and eGoldTeam) are created on same date October 08, 2017
dontoshi: https://bitcointalksearch.org/user/dontoshi-1197251
eGoldTeam: https://bitcointalksearch.org/user/egoldteam-1196461
Both tokens are also listed on EtherDelta on same day
https://twitter.com/etherdelta/status/919261420054859776
Also, this person created lot of random ERC-20 tokens
https://etherscan.io/address/0x9e5135649cec87d01c084e4f040ef32d22a1d4c8
So, friends don't become fools with his random tokens and airdrops.
He will dump garbage tokens on your faces when his tokens get some good price on exchanges.
As airdrop receiver you are safe. But when you sell this garbage on exchanges. Buyer will loss his valuable money with this garbage.
So, please don't encourage this kind of cheaters. Thanks.