I agree with all that you mentioned. As for FB, they will never go down, they are too huge, powerful and way more advanced. I don't care what anyone tells me, the world moves through FB. People can post bullsh*t that FB this, FB that, etc....... there is no way that FB is going down. These small platforms are nothing more then just for small projects. Also, you can't have a live site with una when every update, there is more bugs then the previous version.