Thanks for posting about SiaCoin! I own this one because I believe in the project!
Really, I like the project goal of decentralizing cloud-storage. After all the revelations about the meltdown and spectre bugs effecting all Intel and AMD chips, I loaded up on Siacoin and kept buying through this last dip.
Think about it! The companies most negatively effected by the chip's security bugs are going to be Amazon and Google and anyone else providing server space to cloud storage providers. No matter what, in the short to mid-term, all of those servers and by default, any of the clients renting space on those servers are vulnerable to anyone who knows how or figures out how to exploit those backdoors.
With external storage becoming so cheap, it now makes more sense to buy an array of 8tb storage drives at 200ish on sale on Amazon, and then lease out the space to SIA's decentralized storage system. Could be a nice way to earn passive income in the near future!