Also there will be free bitswift at the snapshot..
Lets say you have 10000 nxt, you get 5000 ignis for free on the snapshot + 10% bitswift from the ignis coins you have (10% from 5000 ignis = 500 bitswift for free).. 1 SWIFT
=> 1.70 usd right now. It is really worth to hodl nxt..
Check:
https://www.jelurida.com/bitswiftSo now it is the best time to NXT coins until we get the airdrop and why they are giving this free airdrop. Whether ignis did not conduct any ICO, may be for marketing purposes they are giving free coin right.