No. 
If you click the link above, you'll see that JKHub is alive and well. (though donations would be appreciated at this time). Nothing has changed in that regard; we have always relied on donations. We just had some bad luck with the timing of our free hosting service going under. It was out of our control and unforeseen.
Again, if you're more interested, read the article I linked to in the OP.
So yeah, there will be a few issues. Currently profile pictures are not linked, and you can't upload new ones yet. Working on that. Also, any changes I made recently to the server page and downloads page need to be done again. I'll get to it soon.
