DEVS have sure given us a haircut on our investments with this coin.

It is true that we don't know the number of coins pre-swap. This coin does not list a maximum supply in it's specs. (did it ever? Big Red Flag!) All the explorers started reporting many multiple blocks with the same number (I saw upwards of 10 blocks at a time with same block-number) and then the explorers went down so no-one could see any blockchain details. Wallet were shut down so that we could not sell.

We can see there was a 30 mil premine coded into the new chain (block #2)

Blocks #3 (03/23/18) to #506 (03/24/18) were payouts to mining addresses.

From Block #507 (03/24/18)  started also paying out splits to Masternode addresses.

----all this way before the "Official" blockchain starting date---

The Chain was already at block #65626 when the swap started, at 10 coins reward for block, 65626 x 10 = 656,260 SYNX rewarded pre-swap.

CoinMarketCap quotes a Circulating Supply of 19,531,650 SYNX that would need to swap.
the devs may be holding this:
30,000,001 initial pre-mine + 656,260 pre-mined (running) - 19,531,650 swaped to holders = 11,124,611 SYNX
DEVS have set up an @ss load of masternodes - watching the price action lately I will guess right here that they have been dumping coins on the market.

I have no good feelings of future projects here.
If DEVS would want distributed voting it would have been set up on-chain. (we have something else that feels like a rail-road bankster move)
If I wanted a PIVX coin, I would have invested in PIVX.