You haven't posted anything about Signatum that wouldn't also apply to pretty much every other coin around. None really serve any kind of real world purpose. Yet.
Either the legit ones have innovative and unique tech which elevate them above other projects, or they are promoting themselves through association with legit commercial platforms.
This coin, just like all the other shitcoins, has nothing to differentiate it from them. Nothing.
They trumpeted the utterly useless 'ASIC resistant' PoW algo for a fucking 100-day PoW period and the rest of the whitepaper is void of anything. All they've done since then is follow the usual practice of developing the fake interest and fake market volume to draw noobs suffering from FOMO into buying in to the coin.
Plus you cannot deny the obvious fact of the scammer accounts in this thread. Check their post history and the vitriol of their ad-hominem attacks attempting to obfuscate the truth in order to save their scam from collapsing before they've milked it for all they can.