Name 2 or 3 cryptonotes who have done this and the currency trading has resumed outside of those listing within the Monero article?
XDN, BCN, and DashCoin all updated their code after the Monero article.
It is a simple matter to merge a few lines of bug fix into the code. If the original dev returns he can fix his repo, otherwise the community can move on without him (if people care to bother).
No one should ever send their coins to some unknown stranger on this forum whether said unknown stranger claims to be doing a 'coin swap' or not.
If you want to do a legit swap, then find a very trusted member to collect the old coins, with the condition that they will be returned if the coin swap is not successful.
You mention DashCoin and I point out if all associated with the chain are not in total concensus - Miners, Pool OPs, Merchants - it will lead to:
https://bt.irlbtc.com/view/1020627.msg19157035#msg19157035Wasted time, hash and mislead community.
SWAP NOW TO NEW CHAIN LESS THAN 24 LEFT DO NOT WAIT