Thanks - this is the first post about a new "Segwit coin" that follows the rules I specified in the OP, so it's being added extra fast to the list
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
Decred is built by the guys who wrote BTC suite, btcd daemon and tools, the golang implementation for bitcoin that one one of the lightning implementations relies on, lnd I think. They don't have Segwit, but they have a malleability fix in place since launch, and have or will shortly have lightning working on their network. See top comment here:
I'm following Decred - not very closely, but I check their state every month or so. When they begin with LN mainnet testing, I will add it to the LN section of the list. If they have already begun and you know a source, then I'll be glad to add it soon - the last news I read was "maybe in Q1 2018".
Also, I would say Bitcoin shouldn't be mentioned based on the fact that the thread title specifies altcoin, which BTC clearly is not.
I do want to include Bitcoin because one of the goals of this thread is to compare its status with that of other cryptocurrencies. You're right about the title being wrong then - so I changed it.