What is the expected date of LN activation?
This article makes some good arguments against the lightning network:
https://medium.com/@jonaldfyookball/mathematical-proof-that-the-lightning-network-cannot-be-a-decentralized-bitcoin-scaling-solution-1b8147650800The main reason it seems like a good idea for bitcoin is because an increase in block size would lead to greater centralization anyway, due to the increased hard drive space requirements to run a full client.
Running a Bitcoin node feels altruistic, so the greater the burden (space requirement) the fewer users will download and run full clients.
Blackcoin users are rewarded for running nodes through staking. For people who get paid for running full clients it doesn't feel unreasonable to have a dedicated raspberry pi and hdd solely for Blackcoin.
I'm not sure lightning network is as good a fit for Proof of Stake coins as Proof of Work ones.