One of the several reasons is the fact that they will delete these posts as soon as the censors gets a hold of them, to start. Another is that the gimmick of "limited availability" never has worked, historically, in any economy and, especially in crypto, with the repeated failures of 42coin, 365coin and all the rest based on scarcity. On a 3rd level, SYNC brings absolutely nothing new or tech innovative to the already overpopulated crypto table...

But, more importantly, it has a very peculiar lead dev, MsCollec/Incognito who, obviously, doesn't deal well with criticism... among many other things, and that doesn't know how to code to save her/his life, to boot. He/she is done in crypto after what he/she did at Voot (another coin that he/she started for no particular reason whatsoever).

But, since he/she remain just a handle, he/she'll be around for quite a while under a different one.

Now, all those things considered, can you find a decent enough reason to stay invested -let alone pour more money into in- in this coin when you have so many great projects around crypto, now with very public and identifiable devs, all of the devs? If you do, by all means... it's your money after all.