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Did you end buying and holding any of these?

yes, i own quite a stack of EOS (bought it at 0,5$) - besides i have a bit neo and my steem.
Looking forward for big moves in EOS, the developer has credits such as BitShares which is currently the busiest/fastest blockchain in working state - he was also involved in the coding part of Steemit. So a Big yes to buy some EOS from my part :)