Why is the price so dive? Is the project no longer developed?
I did not expect the price of Siacoin will ever drop to such a level. Does this mean that the developers have stopped working on the project?
No. It's more active than ever. They have a community manager now and have hired a new developer.
Community members are making things such as a new low fee pool which donates to devs (luxor). A lite wallet, blockchain explorer, duplicati integration, minio integration, siaCDN, etc.
RC3 of the new version is either out or is being worked on. I know that RC2 is finished.
They have sold around 2000 asic mining units which are shopping next year.
Check out their discord channels. They don't post much here.
The reason that it's down so much in regards to btc ratio is that btc is so high. simple math. when btc drops, sia will go back up in satoshi value.